技术保养 meaning in English

technical maintenance
technical service

Guidelines for inspection and preventive maintenance of molded case circuit breakers used in commercial and industrial applications
商用和工业用模制外壳断路器的检验和预防性技术保养的指南
1 . the maintenance of transmission accords with that of the requirements of your automobile . it usually consists of three grades technical maintenance
1 .变速器使用保养按相应的汽车使用与保养要求进行，一般分三级技术保养。
The content thereof includes : the product ' s technical - economic parameters , service life , range of application , term of guarantee , methods for installation , methods of maintenance and conditions for storing , term of technical maintenance and repair , and other effective data concerning the design parameters of the product
内容包括：产品的技术经济参数、使用寿命、使用范围、保证期限、安装方法、维修方法和保存条件、技术保养检修期以及其它有关产品设计参数的有效数据。