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The sense of C is determined as a matter of fixed convention by the right - hand - thread rule.
C的指向约定为由右手螺旋法则确定.
辞典例句
This connection has a right - hand thread ( loosens counterclockwise ).
这种接头有右手螺纹 ( 逆时针方向松开 ).
互联网
The general taps are right - hand thread. Please specify if some left - hand thread taps are needed.
丝锥通常生产右扣螺纹,如需左扣螺纹应在订货时说明.
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