operating and maintaining

operating and maintaining 基本解释

操作和维护

operating and maintaining 用法和例句

1、Protocols that must be followed exist for operating and maintaining airplanes.

原则必须依循现有状况来操作维护飞机。

2、The Airport Authority is responsible for providing，developing，operating and maintaining the new airport.

机管局负责提供，发展，营运和维持新机场。

重点词汇

operating a. 操作的, 工作的, 营业上的, 业务的, 关于收支的, 关于损益的, 外科手术的 [机] 运转费用

maintaining v. 保持( maintain的现在分词 )；保养；坚持；保卫