镗圆锥孔 meaning in Chinese

conical boring
taper bore

Shipbuilding . shaft lines . couplings . taper bore flanges
造船工业.轴线.联轴节.镗圆锥孔凸缘
Shipbuilding . shaft lines . couplings . forged flanges for assembly to taper - bore flanges
造船工业.轴线.联轴节.装配镗圆锥孔凸缘的锻接法兰
Shipbuilding . shaft lines . couplings . taper bore flanges . general arrangement . nut locking plates
造船工业.轴线.联轴节.镗圆锥孔凸缘机.总布局.螺母锁紧板