regular maintenance interval 正常保养周期
Regular maintenance or replacement blades 定期保养或更换叶片
Regular maintenance therapy 正规维持疗法
kilometres between regular maintenance [交] 客车定检间走行里程
During regular maintenance 定期维护过程中
Unless Regular Maintenance 除非进行定期检修
regular maintenance and repair 常规维修
spot inspection and regular maintenance 点检定修
Running regular machine maintenance 进行日常的设备维修
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