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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。
- 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。
- 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。
- 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 bevel of that picture frame was damaged. 那个镜框的斜角已被损坏了。
- Her slight frame was shaken by bouts of coughing. 她纤弱的身躯因阵阵咳嗽而发颤。
- 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。
- The painter stretched the canvas on a frame. 画家把油画布紧绷在画框上。
- It is not easy to true up a frame. 做个标准的框架也不容易。
- 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。
- This athlete has a powerful frame. 这位运动员有着魁梧的体格。
- Peter and Susan seem to be cut out for each other. 彼得和苏珊似乎是天生的一对。
- Study of material jet cutting structure ceramics 磨料射流切割结构陶瓷材料的研究
- It takes long to frame up an article. 构思一篇文章要花好长时间。
- The comedy tine was cut out as being off side. 笑料由于低级趣味而被删去。
- The metal frame tends to twist under pressure. 这种金属框受压後容易变形。
