sliding stay

中国非开挖工程技术网 ... sliding surface 活动面，滑裂面，滑动面 sliding stay 滑动窗撑 sliding sluice gate 滑动闸门 ...

直角三角形_馆档网 ... "滑动闸阀"," sliding sluice valve" "滑动撑条"," sliding stay" "滑[阀]杆"," sliding stem" ...