servicing and maintenance

• 维护保养

servicing and maintenance的用法和样例：

例句

1. The correct maintenance of the apparatus is essential.
   设备必须正确维护保养。
2. Aftermarket, Sanxin glass maintenance will provide customers with glass products may be recommended in order to avoid the problems encountered.
   售后，三鑫玻璃将向客户提供维护保养玻璃产品的建议以避免可能会遭遇的问题。