English translation for "活动孔"

mobile hole
movable span

Similar Words：

"活动坑道" English translation, "活动空间" English translation, "活动空气筒" English translation, "活动空腔辐射计" English translation, "活动空域分配" English translation, "活动控制" English translation, "活动控制功能" English translation, "活动框架" English translation, "活动框架加固法" English translation, "活动馈入法" English translation