钻机绞车刹车系统的制动特性是合理设计和使用刹车装置的理论基础。
The braking characteristic of the brake system of rig drawworks is a basis of design and use of brake apparatus.
石油钻机绞车刹车鼓在下钻过程中,由于热负荷的作用会发生热疲劳破坏。
The brake rims on drilling rig drawworks are subjected to heat load during string lowering and will end in thermal fatigue failure.
我们经常保养钻机(绞车)。
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