例句與造句

1. The most common sealing ring of bit bearing is single o - ring , which is made of rubber
   最常用的鉆頭軸承密封圈是單個(gè)o形圈，主要以丁腈橡膠制作。
2. The service life of cone bits which play an important role in breaking rock of the bottom of a well is almost directly decided by the life of bit bearing , which depends a large extent to the life of their seals
   牙輪鉆頭在井底破巖中起著主導(dǎo)作用，它的使用壽命幾乎直接取決于鉆頭軸承的壽命，而軸承的壽命在很大程度上有依賴密封的壽命。
3. It's difficult to find bit bearing in a sentence. 用bit bearing造句挺難的