fixed cutter bit造句

例句与造句

1. Other fixed cutter bits may employ natural industrial-grade diamonds or thermal stable polycrystalline diamond ( TSP ) cutting elements.
2. Fixed cutter bits were the first type of drill bit employed in rotary drilling, and they are mechanically much simpler than rolling cutter bits.
3. It's difficult to find fixed cutter bit in a sentence. 用fixed cutter bit造句挺难的