您要查找的是不是:
- PP环PP ring
- 环loop
- 环比link relative ratio
- 圆环traffic circle
- 环的annular
- 环氧epoxy
- 环氧乙烷epoxy ethane
- 环己hexanaphthene
- 外环outer ring
- 环保护ring protection
- 手环wrist strap
- 环岛rotary island; roundabout
- 卡环snap ring
- 内环inner belt
- 磁环magnetic ring
- 套环lantern ring
- 环己烷cyclohexane
- 扣环ouch
- 环糊精cyclodextrin
- 五环Fifth Ring