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- Therefore a PDC bit with new compound cutting structure is developed in the light of the characteristics of gravel formation and soft-hard interbedded formation. 鉴于此,针对含有砾石和软硬交错地层的特点,提出了混合切削结构设计,并制造了新型PDC钻头,在含砾石的地层和软硬交错地层中取得了较好的使用效果。
- The lateral imbalance force on a polycrystalline diamond compact(PDC) bit is one of the important causes to lead severe bit whirl, which is associated closely with cutting structure on a bit. 聚晶金刚石(PDC)钻头的侧向不平衡力是造成钻头涡动的主要原因之一,而侧向不平衡力取决于钻头的布齿结构,通过合理的布齿结构设计,可有效地控制侧向不平衡力的大小。
- Study of material jet cutting structure ceramics 磨料射流切割结构陶瓷材料的研究
- Rose bushes shoot again after being cut back. 玫瑰丛修剪後还能再长出新枝。
- In order not to be late, she cut across the fields. 为了不迟到,她抄近路穿过田野。
- Discussion on hybrid cutting structure PDC drill bits 混合切削结构PDC钻头简论
- He cut off a bunch of grapes to entertain us. 他剪下一串葡萄招待我们。
- She reckoned she had cut her cost by half. 她估计她减少了一半的费用。
- The flood cut a wide swath in this area. 洪水席卷了这一地区,满目一片疮痍。
- The slide cut off the valley from the rest of the world. 山崩切断了这个山谷与外界的联系。
- I must say I didn't like the cut of his jib. 说实在的,我不喜欢他那个样子。
- I cut myself on the cheek with my razor. 我不小心被刮胡刀割伤了脸颊。
- Peter and Susan seem to be cut out for each other. 彼得和苏珊似乎是天生的一对。
- The comedy tine was cut out as being off side. 笑料由于低级趣味而被删去。
- She was cut to the quick by his insults. 她受他侮辱而十分伤心。
- Our tanks cut in ahead of the escaping aggressors. 我们的坦克抢到前面去拦住那些溃逃的侵略者。
- He often cut recitation during his college days. 他上大学时经常无故旷课,逃避背诵练习。
- The surgeon cut out all the diseased tissue. 外科大夫把坏了的组织都切除掉。
- I cut my hand on some broken glass. 碎玻璃割伤了我的手。
- I haven't given up smoking but I'm cutting down. 我没有断烟,但是抽烟少了。