滚珠丝杠副内螺纹
internal thread of ball screw
内六角螺丝
hexagon socket head cap screw
1/2英寸内螺纹管道连接器
internal one-half inch thread conduit connection
鼻内内视镜造口术
intranasal endoscopic marsupialization
并联倾斜内螺纹管
Parallel inclined inner ribbed pipe
垂直并联内螺纹管
Parallel vertical rifled tube
Parallel vertical rifled tubes
vertical parallel inner threaded tube
parallel vertical internally ribbed tube
垂直内螺纹管
vertical internally ribbed tube
垂直内螺纹管水冷壁
verti cal rifled waterwall temperature difference between adjacent tubes
vertical rifled waterwall
大尺寸锯齿形内螺纹
Large internal buttress thread
大直径内螺纹铣削加工
large diameter internal thread milling
多头内螺纹
multiple-internal screw thread