3d illustration of alkyne alkene and alkyne with ethane ethylene acetylene show type of chemical bond in basic
ID: 1723647436
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- 大图:4943 × 1879 像素·41.85 cm × 15.91 cm·300dpi·JPG
- 中图:1000 × 380 像素·35.28 cm × 13.41 cm·72dpi·JPG
- 小图:500 × 190 像素·17.64 cm × 6.7 cm·72dpi·JPG