... 钻头接套 drill socket 钻头使用寿命 drilling life of bit 钻头寿命 bit life ...
双语例句
1
The results show that the vibration ofdrilling strings will produce the fluctuation of weight on bits by random excitation, so the bitlife and drilling rate are affected largely.
结果表明,在地层随机激励作用下,钻柱的振动将会引起钻压的波动,从而影响钻头的寿命及其钻进的速度。
2
Wheel is a new diamond drill bit for oil drilling tools, drill bit bearing life with their life impact of crucial importance.
轮式金刚石钻头是一种新型的石油钻探工具,钻头轴承的寿命对其使用寿命有着致关重要的影响。
3
Drilling in gravel stratum is one of present difficulties in drilling area with low drilling speed, short service lifeofbit and high drilling cost.