maintenance是什么意思

用法例句

Common trouble and maintenance of ABT5100 ventilator;

ABTS5100呼吸机常见故障及维修保养

Malfunction and maintenance of Abbott CELL-DYN 1700 system;

雅培CELL-DYN1700血细胞分析仪的常见故障和维修保养

Strengthening the proper usage and maintenance of the electronic measuring equipment;

加强电子测量仪器的正确使用与维修保养

The effect of maintenance and repair on exhaust emission of city taxi is studied.

采取随机抽样方法对100台营运的出租车在月度维护保养前后的废气排放进行双怠速、怠速测试,研究维修保养对排放水平的影响,分析车龄与排放的关系以及发动机燃油供给方式与排放的关系。