safe operation
短语词组
- safe stable operation 安全稳定运行
- safe in operation 安全操作;安全运行;翻译
- safe railway operation [铁路]铁路安全运行
- safe repair operation 安全维修作业
- safe train operation 列车安全运行
- Safe comfortable operation 安全舒适运营
- safe economical operation 安全经济运行
- safe -operation 经济安全运行 返回 safe operation