three start screw 三条螺纹 ; 三头螺纹 ; 三条罗纹
one start screw 单头螺纹 ; 单螺纹 ; 单纹螺钉
two start screw 双纹螺钉 ; 双头螺纹 ; 双纹螺纹螺钉
three-start screw 三头螺纹
double start screw thread 双纹螺纹
two-start screw 双头螺纹
multi start screw thread 多头螺纹
multi-start screw thread 多头螺纹
single-start ball screw 单线滚珠丝杠副
start screw
开始螺丝
以上为机器翻译结果，长、整句建议使用 人工翻译 。
PGMs arrive in boxes, stay in boxes for months, then finally they need to start using it, screw up their library prep, get tired and service out.
FORBES: Most Read on
Inside the mediocre lobby we staked out a position near the numbered boxes, innocuously pretending to screw up our change-of-address forms so that we had to start over again a dozen times.
NEWYORKER: The King of Sentences
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