... low-angle growth fault 低角生长断层 low-angle negative rake 小负角倾斜定向 low-angle overthrust fault 低角上冲断层 ...
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This paper also discusses bit parameter design to improve the economy of PDC bits, such as negative rake Angle and side rotation Angle.
本文还介绍了为提高复合片钻头经济指标的钻头参数设计问题，如负前角，侧旋角等。
The present paper also introduces the theory for the design of bit parameters in order to improve the economic target, such as negative rake angle, bypass angle and the exposure height.
本文还介绍了为提高复合片钻头经济指标的诸钻头参数设计的理论根据，如负前角、旁通角、出露高度、复合片布置等等。
This error has influenced the precision of gear, especially, when negative rake Angle of gear-shaped cutter is used, the current design method has not reguired the profile precision.
这种误差影响了齿形精度，特别是负前角插齿刀，现行的设计方法不能满足齿形精度。
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