Valves may be operated manually, either by a handle, lever or pedal.
阀门可手动操作，或者通过一个手柄，手柄或踏板。
That system does use batteries for the controls, but it can also be operated manually.
该系统能够用电池组控制，也能够手动操作。
With electric actuator, it's can be controlled through valve flow and also can be operated manually when without power.
配合电动执行器可以实现远程阀门流量开度控制，在无电源情况下也可以手动进行操作。
All fluid systems should be operated and air removed from systems and checked all leaks in piping systems. Cylinders and valves also should be operated manually.
所有的流体系统将用空气进行操作运行，以对管路系统中的所有泄露情况进行检查，液压缸和阀同样也要进行手动操作。
According to an initial investigation, a sudden loss of power caused the signal system to fail, forcing the trains to be operated manually, Shanghai Shentong Metro Group Company said in a statement.
上海申通地铁集团公司在一次声明中称，根据初步排查，电力突然中断致使地铁运营信号系统失灵，导致不得不对列车实行人工调度。
This type of coordinate indexing is said to be manually operated, since the recording of the accession number onto the features card is done by hand.
这种类型组配被称为是人工操作的，因为在特征卡上写登记号是用手写的。
The doors can be manually operated in the event of fire.
发生火灾时，这些门可以手动控制。
The whole machine is controlled by programmable software. The process is unified to ensure quality and stability, can be manually operated, easy to explore the process parameters and new process.
选件，统一工艺，确保质量稳定，亦可进行手动操作，便于摸索工艺参数和流程。
The systems can be installed directly on loaders that were originally equipped with manually operated hydraulic actuated directional control valves.
该电液比例先导控制系统可以在采用液控多路阀的装载机上直接安装使用。
In general, all automatic control functions must be capable of being operated manually.
通常，所有自动控制功能必须能手动操作。
The master starting air valve can be operated both manually and electrically.
主启动气门可以手动或电动的方式启动。
The three astronauts working nervously, they're holding the joystick, in case the computer failure, can be manually operated.
三个宇航员紧张地工作着，他们手握操纵杆，以防一旦计算机出现故障，就可以手工操纵。
Its driving device of the regulating mechanism of the multi-edge reflector can be manually operated or electrically operated.
调节不等边多棱反光镜的调节机构的传动装置可以是手动或电动装置。
Its driving device of the regulating mechanism of the multi-edge reflector can be manually operated or electrically operated.
调节不等边多棱反光镜的调节机构的传动装置可以是手动或电动装置。
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