rate of penetration的用法和样例：
例句
- At the same deviation, the big WOB can be applied to increase the penetration rate in the straight hole.
在防斜效果不变的情况下，可采用较大钻压钻进，大大提高了直井段的机械钻速。 - If only raising drilling fluid density to prevent hole sloughing,it will lead to slow penetration rates and long drilling cycles.
如果单纯提高钻井液密度防塌，则导致机械钻速低，钻井周期长。
