Terms containing head-control

Subject	English	Chinese
space	cross head control dial	十字头控制刻度盘
hydrol.	head control gate	水头控制闸门
eng.geol.	underwater well-head control system	水下井口控制系统
oil	well head control block valve	井口总闸门
tech.	well-head control device	井口控制
tech.	well-head control unit	井口控制
oil	well head control valve	井口总阀门
oil	well head control valve	井口控制阀
dril.	well head control valve	井口总闸门
tech.	well-head control valve	井口控制阀