- 钻头: boring crown; bore bit; dril ...
- 圆周: circumference; circle; perip ...
- 速度: velocity; speed; blast; bat
- 圆周速度: circular speed; circular velocity; circumference velocity; circumferential speed; cirumferential speed; cirumferential velocity; peripheral speed(circumferential velocity); peripheral velocity; peripheralvelocity; periphery speed; rim speed
- 辊轴圆周速度: roll peripheral speed
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