助听器服务包括产品选择、装配、修理、更换、特殊配件和电池。
Hearing aid services include selecting, fitting, repairs, replacement, special fittings and batteries.
此领域的技术人员在工厂及机械修理店负责装配和操作机械工具。
Technicians in this field set up and operate machine tools in factories and small machine shops.
抽油泵泵筒装配心轴是抽油泵制造和修理的关键工艺装备。
The mandrels for assembling tubing pump barrels are very important equipment of manufacturing and repairing tubing pumps.
应用推荐