Terms containing positioning servo

Subject	English	Chinese
el.	head servo positioning system	磁头伺服定位系统
tech.	positioning servo	定位伺服机构
oil	servo positioning	伺服定位
el.	servo-controlled positioning system	伺服控制定位系统
tech.	servo-positioning	伺服定位
tech.	valve positioning servo loop	阀门定位伺服回路