The deep formation has a high degree of hardness and abrasivity;the bit type selection is difficult and the ROP is low especially under the high density mud.
深部井段地层的硬度高、研磨性强，钻头选型困难，特别是在高密度条件下机械钻速低。
| 单词 | bit type |
| 释义 |
bit type
英语例句库
The deep formation has a high degree of hardness and abrasivity;the bit type selection is difficult and the ROP is low especially under the high density mud. 深部井段地层的硬度高、研磨性强，钻头选型困难，特别是在高密度条件下机械钻速低。 |
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