- operation and maintenance
- 使用: make use of; use; employ; ap ...
- 保养: take good care of one's heal ...
- 使用保养技术: terotechnology
- 使用保养条例: regulation for operation and maintenance
- 绝缘手套和套袖的使用保养: standard specification for in-service care of insulating gloves and sleeves
下载手机词典可随时随地查词查翻译