电子化学习扁平插图设计 ，教育与学习的各种方式

line icons about energy efficiency and saving. sustainable development. contains such icons as renewable energy, environmental goal, value, eco transition. editable stroke vector 256x256 pixel perfect

set of 60 line icons related to productivity and efficiency. outline icon collection. linear business and leader symbols. editable stroke. vector illustration. 

efficiency outline icon. simple linear element illustration. isolated line efficiency icon on white background. thin stroke sign can be used for web, mobile and ui.

energy efficiency rating labels promoting low consumption and efficient products to reduce carbon footprint. lower co2 emissions with efficient home and appliances. green eco-friendly business.

set of vector line icons related to efficiency. performance, productive, multitasking. editable stroke. 48x48 pixel perfect.

simple set of energy saving related vector line icons. 
contains such icons as energy costs, power consumption level, green house and more. editable stroke. 48x48 pixel perfect.

energy efficiency icon set. calculator, energy-saving light bulb, piggy bank, solar panel, circular economy, battery, home insulation, energy class vector illustration yellow and green.

hand holding light bulb ideas on a background of blurred green trees ecological energy efficiency energy efficiency concept together with the conservation of alternative energy and alternative energy.

energy efficient house building rate label audit

service engineer checking solar cell on the roof for maintenance if there is a damaged part. engineer worker install solar panel. clean energy concept.

person hand using laptop computer with house icon energy efficiency scale image on office desk, concept of ecological and bio energetic house. energy class.

3d energy chart for concept design. 3d vector illustration. chart concept. vector icon.

energy efficiency screen on cellphone leaning on drawings and blueprints of a new house. architect's desk with plans on it and a cell phone with an energy efficiency graph. renewable energy concept.

eco-friendly building in the modern city. sustainable glass office building with trees for reducing heat and carbon dioxide. office building with green environment. corporate building reduce co2. 

businesswoman finger pointing arrow graph. business development to success, profit and growing growth plan.	


simple set of energy related vector line icons. contains such icons as energy costs, burn, eco friendly power and more. editable stroke. 48x48 pixel perfect.

hand holding digital tablet and looking at house efficiency rating. detail of house efficiency rating on digital tablet screen. concept of ecological and bio energetic house. energy class.

energy efficiency mobile app on screen. ecology, eco house concept

set of 36 icons related to workflow, processing, operation. outline icon collection. editable stroke. vector illustration.

operational excellence, efficiency concept.  industrial management in efficiency and efficient process. lean cost, productivity growth. production efficiency. productive people and talent management.

men technicians carrying photovoltaic solar moduls on roof of house. builders in helmets installing solar panel system outdoors. concept of alternative and renewable energy.

black bulb with checkmark like quick tip icon. flat stroke linear simple trend modern efficiency logotype design element isolated on white. concept of visionary info pictogram or conclusion symbol

operations management icon set. containing production, logistics, supply chain, manufacturing, planning, inventory management, strategy, customer satisfaction and cost icons. solid icon collection.

vector of a smart businessman pushing a sphere leading the race against a group of slower businessmen pushing boxes. winning strategy in business concept

execution logo like thin line gear with checkmark. flat linear trend modern production logotype graphic stroke art design isolated on white. concept of implement productivity or problem solution

trees grow on piles of money and energy-saving charts on home models in a residential home energy efficiency assessment concept office.

hand turning a knob with efficiency scale from black and red to green color. composite image between a hand photography and a 3d background.

sustainability illustration set. characters reduce energy consumption at home, unplug appliances and use energy saving light bulb. green electricity and power save concept. vector illustration.

family looking at smart thermostat, adjusting, lowering heating temperature at home. concept of sustainable, efficient, and smart technology in home heating and thermostats.

environmentally friendly installation of photovoltaic power plant and wind turbine farm situated by landfill.solar panels farm  built on a waste dump and wind turbine farm. renewable energy source.

side view pleasant young woman using smart home system or activating modern alarm system before leaving apartment. happy lady turning off easy security technology, when returning house or flat.

round convenient icon like easy pay or update. concept of replace or swap symbol and quality control. linear trend modern synchronize logotype graphic stroke art design web element isolated on white

quality increase and cost optimization for products or services to improve customer satisfaction and enhance company performance. successful corporate strategy and management. effective business.

sustainability illustration set. characters monitoring private electricity and central heating meter and calculating household utility bill. home energy efficiency audit concept. vector illustration.

high efficiency level concept - efficiency level control button on high position. 3d rendering

cropped image of businessman calculating energy efficiency rate in office

energy efficiency as car speedometer close up. 3d illustration

efficiency. businessman presses the inscription on the virtual screen

businessman holding tablet with growing virtual hologram of statistics, graph and chart.business strategy development and growing growth plan. investment of growth on currency rate.

efficient business operation. smart control concept

polystyrene thermal cladding for energy saving on a construction site

smart industry 4.0 technology concept, engineer using data and control networking for sustainable energy, sustainable development, energy saving, increase productivity and  efficiency management 

efficiency energy rating concept. sustainable development and eco house. ecological house with low consumption on renovation with insulation.

residential home energy efficiency with level measurement outline diagram. electricity and heating resource consumption rating from green and sustainable to expensive bills rank vector illustration.

efficiency vector icon isolated on transparent background, efficiency transparency logo concept

电子化学习扁平插图设计 ，教育与学习的新方向

efficiency levels knob button. increasing efficiency level. wireframe hand turning a efficiency test knob to the maximum position. development and growth business concept. vector illustration.

concept checklist online survey business efficient document form project management, evaluation, auditing, quality control standards check mark isocertified symbol commercial warranty

target icon in trendy flat style isolated on grey background. aim symbol for your web site design, logo, app, ui. vector illustration, eps10.

black thin line gear like insight or metric icon. flat linear trend modern stroke fin tech logotype graphic web art design element isolated on white background. concept of manufacturing or methodology

energy efficiency rating and eco home renovation insulation performance, low consumption ecological house, sustainable development concept with expert touching icon on screen

close up crop of hourglass on wooden home office table count measure time. female worker employee work on laptop on background, make plan or meet deadline. time management, efficiency concept.

set of line icons related to upskill, upskilling, personal growth, development, education, career. outline icon collection. editable stroke. vector illustration

businessman analyzes profitability of working companies with digital augmented reality graphics, positive indicators in 2024, businessman calculates financial data for long-term investments.

carbon footprint, co2 neutral, net zero, sustainable development editable stroke outline icons set isolated on white background flat vector illustration. pixel perfect.

female hands and house with energy efficiency scale image on natural background

concept of operational excellence with gears, cogwheels and up arrows in futuristic glowing style

speedometer, tachometer low and high barometers, dashboard with arrows black editable stroke icon isolated on transparent background. line vector use for performance indicator sign. car speed.

efficiency vector icon illustration. creative sign from quality control icons collection. filled flat efficiency icon for computer and mobile. symbol, logo vector graphics.

alternative energy sources vector linear icons set. ecology renewable energy outline symbols pack. collection of alternative energy icons isolated contour illustrations. electric car. solar power

woman change a new electric bulb, open air conditioning 26 degrees make a home more energy efficient. home appliance energy efficient. household equipment and energy class chart. power saving concept.

process management, optimization operation, fix strategy industry, transmission gear wheel, software update status, cog gear wheel with arrows on the technology abstract background

operational excellence, production growth icon, line vector

save energy icon. eco plug with leaf. energy saving symbol. vector

energy efficiency of home kitchen appliances concept. 3d illustration

businessman with many hands in a suit. works simultaneously with several objects, a mug, a magnifying glass, papers, a contract, a telephone. multitasking, efficient business worker concept

3d rendering of a sustainable building architecture model with blueprints, energy efficiency chart and other documents

efficiency line icon set. included the icons as velocity, organizing, performance, productive, work, timeline  and more.

businessman holding light bulb with energy sources icon. campaigning for ecological friendly and sustainable environment. earth day. energy saving concept, elements of this image furnished by nasa

energy efficiency concept. person using tablet with energy efficiency rating icon on virtual screen for energy efficient house building rate label audit.

modern eco private house with windmills and solar energy panels, electric car near charging station, green industrial factory with renewable energy.  flat isometric vector illustration and icons set.


energy efficiency and home improvement concept. ecological and bio energetic house. energy class;house efficiency rating. low energy to save money. hand holds wooden cubes with energy efficiency scale

energy efficiency and home improvement concept. eps10 vector illustration.

wooden blocks with symbol of efficiency concept on blue background

cost and quality control, business strategy and project management concept. businessman working on digital tablet with quality control growth graph and cost reduction, effective business

thin line icons set of ecology, environment and sustainability concepts. outline symbol collection. editable vector stroke. 64x64 pixel perfect.

energy efficiency concept with energy rating chart

operational excellence concept. productivity with excellence process. industrial management in efficiency and efficient process. lean cost and  productivity growth. process of continuous improvement.

productive woman, multitasking or time management professional, productivity or entrepreneurship, work efficiency or organize schedule, productive businessman woman balance on clock managing tasks.

young modern business man working using digital tablet while sitting in the office

productivity and production capacity concept.  industrial management in efficiency and efficient process. lean cost and  productivity growth. capacity planning and utilization. operatonal excellence.

productivity icon. cogwheel with arrow sign representing increase in performance, production, work process and operation efficiency. efficient capability logo. increase productivity icon. - stock vect

sustainable ecological energy icon. shining electric ecology light bulb with leaf inside. go green lamp tube silhouette. editable stroke. line vector illustration. design on white background. eps 10

costs optimization and production efficiency icon, linear

isometric business people pushing cubes. winner easily moving the cube. winning strategy, efficiency, innovation in business concept.

workflow organization. teamwork process. deadlines respect. efficient workday. time management, effective time spending, time planning concept. vector isolated concept creative illustration.

man change a new electric bulb, open air conditioning 26 degrees make a home more energy efficient. home appliance energy efficient. household equipment and energy class chart. power saving concept.

wind turbine with solar panels and sunset. concept clean energy. energy supply, wind turbine,eolic turbine, distribution of energy,powerplant,energy transmission,high voltage supply concept

editable line icon of a business strategy symbol set for personal focus, creative thinking, brainstorm session, ambition, goal and target practice as a customisable black stroke eps vector graphic

green energy icons - vector line icons. editable stroke. vector graphic

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