- dip gauge
- 垂度: sag; sagitta; deflection; sl ...
- 规: instrument for drawing circl ...
- 垂度: (下垂度) sag; sagitta; deflection; slack◇垂度规 dip gauge; 垂度计 sag gauge; 垂度计算 sag calculation; 垂度曲线 sag curve; 垂度仪 sight for sag
- 度规: metric
- 垂度计: deflection indicator; sag gauge; sight for sag
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