bottom head
短语词组
- bottom of head 下頭
- bottom -head rivet 圓頭鉚釘;繙譯
- bottom knife head 下刀片滑塊
- Cone bottom elliptical head tank 立式橢封錐底儲罐
- spherically dished bottom head 半球形底封頭
- RPV bottom head 反應堆壓力容器底封頭
- bottom head cap screw 美不雅的半圓頭螺絲
- bottom head centre disc 底封頭中心碟形磐
- cylinder bottom head 缸底蓋;汽缸底蓋 返回 bottom head