[ fēngzuàn ] air drifted drill air drill hammer air flush drilling air motor drill air rig air rock drill compressed air drill compressed-air drill compressedairdrill hammer drill percussion borer percussive air machine pneumatic drill
Masonry drills . tapers of hammer drills 砖石砌工用钻机.风钻的锥度
2.
Description : production nail , pneumatic drills , pneumatic screwdriver , wind mill , pneumatic wrench and pneumatic tools 简介：生产钉枪、风钻、风动螺丝批、风磨、风动扳手等气动工具。
3.
They drilled large holes in the rocks , and humus - rich soil the colour of the night was mixed with seedlings and carefully planted inside 他们于是用风钻挖地洞，再放泥土，重新种植。海风盐分重，加上风力强，均不利树木的生长。
