The single tooth cutting course of a PDC drilling bit is studied. The research is of great significance for improving PDC drilling bit design.
为了改进PD C钻头设计，在全尺寸试验的基础上，对PD C钻头单齿切削过程进行了试验研究。
The drilling unit is made of a very strong structure containing the single drilling spindles which run in perfectly ground bronze cylinders (sleeves).
钻头单元由一个强有力的包含单一钻锭的结构组成，钻定运行在完美的青铜圆柱（袖套）面上。
When the water depth or drilling depth is very low, a single platform is enough.
当湖水较浅、钻进深度不深时，选用单体钻探平台。
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