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1·The core bit includes shank and thread, which consists of male thread and female thread.

有直柄钻头和螺纹柄钻头之分，螺纹柄分为内螺纹和外螺纹。

2·Adopting the new method to female thread machining, high hardness of thread can be acquired, and tap broken cases reduce significantly.

采用振动挤压攻丝新方法对钛合金材料进行内螺纹加工，螺纹表面硬度高，丝锥损坏现象显著减小。

3·With features of superhigh hardness and strength, the cutting tool is broken down frequently when female thread was processed using titanium alloy.

钛合金材料由于存在硬度高、强度大等特点，在进行内螺纹加工过程中刀具经常损坏。

4·The lighting device comprises at least a metal sleeve with a female thread, a printed circuit board, a LED, a microswitch, a spring electrode, a battery and a rear metal cover.

照明装置至少包括带内螺纹的金属衬套、印刷电路板、发光二极管、微动开关、弹簧电极、电池及金属后盖。

5·The force of the explosion enlarges the female (outer) thread enough that the threaded connection unscrews instantly.

爆炸所产生的力使母扣扩大，足以使丝扣连接处瞬时松开。

6·This patented Special Reinforced design is one of the most significant improvements in female plastic thread reliability.

这种以获得专利权的特别加固结构对塑料内螺纹可靠性来说是最有意义的改进之一。

7·The push rod can be supplied free or captive, with female M5 thread, an M5 rod eye, or dome end, captive push rods can be sprung loaded, in either direction, on sensors up to 250 mm of travel.

在推杆可以提供免费或俘虏，其中女性M5螺纹，一个M5的棒眼，或球结束，圈养推杆弹簧加载，可以在两个方向，对传感器多达250毫米的旅行。

8·Objective: To observe the effect of embedding thread at Pishu(BL 20) and Shenshu(BL23) on bone mass density(BMD) and pain in the female of primary osteoporosis.

目的：观察脾俞、肾俞穴位埋线对原发性骨质疏松妇女骨密度及疼痛的影响。