thread crest clearance 螺纹顶部间隙
thread top clearance 螺纹顶部孔隙
clearance thread 间隙螺纹
Clearance screw thread gauge 间隙螺纹量规
The lin ear positioning errors are compensated by the compensation of the thread pitch a nd thread clearance in the machine tools.
通过补偿机床螺距和丝杠间隙误差，实现了机床线性定位误差的补偿。
The upgraded drum locking device has integral drum locking blocks and a float screw rod, with the antivibration performance improved and the thread clearance eliminated.
改进的穿孔机转鼓器结构，采用整体压鼓块和浮动丝杆，消除了螺纹间隙，提高了抗振性能。
There exists a spiral clearance space in the API round thread casing joint which is effected by the thread tolerance ranges.
API套管圆螺纹自身存在牙间间隙，并形成螺旋状空间间隙带。
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