drilling rigs

常见例句

Disc brake system on drilling rigs.
石油钻机盘式刹车制动系统。
Calculation of wear life of driving chain on drilling rigs.
石油钻机传动链条磨损寿命的计算
AC-SCR-DC mode is the best driving mode for a drilling rig.
DC驱动方式是目前钻机最好的驱动传动方式。
Analysis of working characteristics of disc brake system on drilling rigs.
钻机盘式刹车系统钻进特性分析
By the same token, the cost of hiring some kinds of drilling rigs is falling.
同样雇用某些类型的钻机成本也在下降。
MAN300 drilling rig is working in gravel area in West Luntai, Sinkiang.
300型钻机在新疆轮台西砾石区进行地震钻井施工。