Certified testing and maintenance are required to ensure proper function and maximum effectiveness of assemblies 检测和维护需要书面检测和维护，确保总成的功能正常，效率最高。
The check valves shall utilize a single torsion spring design to minimize pressure drop through the assembly 这种止回阀应该采用单扭力弹簧结构来将通过总成的压降减到最小程度。
After shutoff valves are closed , open test cock # 2 , # 3 & # 4 to relieve pressure within the backflow assembly 在关闭了关闭阀后，开启测试旋塞2号， 3号和4号，释放回流阀总成的压力。
After shutoff valves are closed , open test cock # 2 , # 3 and # 4 to relieve pressure within the backflow assembly 在关闭了关闭阀后，开启测试旋塞2号， 3号和4号，释放回流阀总成的压力。
Shanghai nanhui hongsheng automotive parts factory is a professional manufacturer and developer for window lifters 上海南汇宏升汽车配件厂是研制、生产轿车用玻璃升降器总成的专业厂。
The key to the technological transformation is the design of the manual oil pump 、 the delivery pump and the whole transmission box 技术改造的关键是手油泵、输油泵及传动箱总成的设计。
For parallel valve installations , the total capacity of the assemblies should equal or exceed that required by the system 对于并联阀门安装，其总成的总性能应该等于或超过系统所需的性能。
The hydraulic system is in ratio oli - way system with mulitisiage rail assembly control . with low noise and low assumption of energy 液压系统为多级比例总成的控制比例油路系统,噪音小,能耗低。
State - of - the - art accuracy of . 25 % of full scale for reliable testing of all types of backflow prevention assemblies 最新技术的精确度，达全量程的0 . 25 % ，适用于所有类型防回流阀总成的可靠检测。
Produce boms of complete seats sub assemblies , prepare change control documents dfmea etc documents required by plus 制作座椅总成及分总成的bom表，准备更改控制文件及dfmea等plus所规定的文件。
