带着防护镜的老师和学生在化学实验室做实验

许多小人在铁架台酒精加热烧瓶连接着

alcohol lamp burner with a flame. laboratory equipment science illustration of a lab tech burner for science experiments.

铁架台上酒精加热烧瓶连接着试管制作

experiments on chemistry at home. teen boy in protective glasses heats the test tube with blue liquid on burning alcohol lamp. the liquid boils. online education, homeschooling and science concept.

带着防护镜的医生在实验室工作——矢量插画

alcohol burner. glass flask with solution, wick and flames isolated on white background. spirit lamp. burner for heating liquid. chemical equipment. laboratory burner for education experiments.

科学化学实验室试管烧杯滴管锥形瓶酒精灯设备

alcohol burner, lamp (stainless), laboratory equipment.

人物设计男医生女医生学者矢量图

化学实验器材试管烧瓶显微镜矢量素材

collection of science color icons. set of alcohol lamp symbols drawn with thin contour lines. vector illustration.

矢量卡通涂鸦生物实验室试管烧杯器材元素

laboratory glass alcohol lamp burner with flame vector illustration. lab chemistry test. medical and chemical equipment. scientific experiment and research.

illustration set of scientists and experimental tools.

矢量手绘卡通涂鸦化学实验室试管器材元素

chemical bottle on stand. candle heats flask with blue reagents, checking interaction of molecules at high temperature. scientific experiment in laboratory. cartoon isometric vector illustration

scientists are doing scientific experiments and research together with huge experimental equipment. flat design style minimal vector illustration.

alcohol lamp, laboratory spirit lamp filled with alcohol burns.scientific equipment isolated on white background with clipping path

用户通过VR进行虚拟实验的操作和学习

 scientists with simple characters are experimenting with huge experimental equipment. flat design style minimal vector illustration.

hand drawn spirit lamp for scientific lab. color vector sketch illustration of chemical medical laboratory equipment. drawing of glassware isolated on white background.

空化学实验室在中国的一所中学。

close up hands wear blur gloves holds alcohol lamp and windshield. equipment for doing science experiment. concept, equipment or tool for science experiment. educational toolkit in science subject.   

experiments on chemistry at home. closeup boy's hands sets the burning alcohol lamp on fire with a match.

color alcohol or spirit burner icon isolated on white background. chemical equipment. gradient random dynamic shapes. vector illustration

老师通过网络线上教学讲解实验课程远程上课

red wine tasting at home: wine bottle, wineglass, corkscrew and candles on a table in the living room at night

带有化学元素背景的科学家的人物矢量插画

实验人员进行无机化学蒸馏实验矢量插画

laboratory equipment set of linear icons, instruments for biological, chemical or biochemical lab vector illustration

alcohol lamp burner with flame. laboratory equipment. tech burner for science experiments. vector illustration

set of microbiological lab icons. miscellaneous laboratory devices and equipment. vector illustration

alcohol lamp, stainless steel lamp
general purpose alcohol lamp

metal table and vintage lamps  with liquor bar background

experiments on chemistry at home. boy heats the test tube with red liquid on burning alcohol lamp.

luminous letters bar. volumetric letters from rusty metal with a garland of incandescent lamps

black line alcohol or spirit burner icon isolated on white background. chemical equipment. set icons colorful square buttons. vector illustration

wooden brown table and vintage lamps with blurred liquor bar background

glass vector icon set such as: alcoholic, liquor, sand, caution, natural, mayonnaise, lamp, incognito, looking, post, service, sauce, organic, olive, detective, science, icons, button, transportation

vector image, flat style. test tubes, vials, vessels. alcohol or spirit lamp. icons set for web design, isolated icons of glass laboratory instruments. science, education, training. print for poster.

night club stage with pub counter vector illustration. beer goblet table and alcohol cocktail on restaurant. wine bottle and snack in fridge on nightclub party hall. light bulb and stool furniture

laboratory spirit lamp filled with alcohol burns.

chemistry, scientific laboratory experiment. combustion process, heating. the flask, the test tube is heated over the fire of a spirit lamp, a burner. evaporation process vector illustration

3d rendering of experimental alcohol lamp and wind shield with grill, scientific equipment for education

vector image of a chemical reaction. the combustion process, heating. the flask, test tube is heated above the fire of a spirit lamp, a burner. chemistry, medicine, biology. process evaporation.

 laboratory spirit lamp filled with alcohol on a bamboo litter

vintage lamps  with liquor bar background

selective focus at hand of scientists are using a stirred glass rod for color mixing experiments. use a beaker clamp and use an alcohol lamp to boil the liquid. concept of science and lab experiments

vector drawn alcohol lights. isolated on grey background.

spirit lamp burner for chemical lab on transparent background. eps10 vector

thin line vector icon set - incandescent lamp vector, magnifier, mercury thermometer, window frame, bulb, a glass of tea, cocktail, jar jam, round flask, light, bottle, test tube, zoom, wine

3d rendering of laboratory desk, microscope, alcohol lamp, test tube, flask and tube grip holder

chemical alcohol burner, 3d illustration, isolated on white background, vector, eps 10

color and black flat icon set - bulb vector, fire, eye, traffic light, brightness, desk lamp, fireplace, beer, candle, smoke detector, energy saving, outdoor, alarm led, palm sproute, idea

soft focus picture of vintage lamps with blurred liquor bar in vintage photo filter style.

kindle fire on alcohol burner or alcohol lamp in laboratory.

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