电火花小孔内圆磨床
small hole electrical discharge internal grinding machine
方头内孔输入传动
square female input drive
飞轮壳内孔
inner flywheel housing bore
缸体缸套内孔表面
cylinder block liner bore surface
积水的孔内处理法
handling method of inside drill-hole of water logging
晶内孔隙度
intracrystal porosity
intracrystalline porosity