double-acting type pneumatic pile hammer的意思|示意
美 / /
英 / /
双作用式气动打桩锤
double-acting type pneumatic pile hammer的网络常见释义
双作用式气动桩锤 ... double-acting door 双摇门 double-acting type pneumatic pile hammer 双作用式气动桩锤 double-glazing 双层玻璃 ...