... 三弯式气门嘴 triple-bend valve 三线螺纹 triple thread 三向旋塞 three-way cock ...
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... three start screw 三线螺纹 three start thread 三线螺纹 three throw crank shaft 三连曲轴 ...
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短语
三线螺纹测定规
thread measuring three wires
三头螺纹、三线螺纹
three start screw
三线测螺纹法
three wire measurement
;
three wire method
三线检验螺纹法
three-wire thread inspection
-
triple thread
three start thread
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