English translation for "旋式孔"

rotary boring
rotary drilling
rotary percussion boring

Similar Words：

"旋升飞机" English translation, "旋升螺线" English translation, "旋绳" English translation, "旋绳器" English translation, "旋式颤振" English translation, "旋式燃烧系统" English translation, "旋式碎石" English translation, "旋首" English translation, "旋首：琴头的螺旋形部分" English translation, "旋输线的" English translation