以下为句子列表：
英文: A single reducing valve can be applied if operating flow, requirements are within the capacity of one size valve, and pressure drop is outside the Cavitation Zone.
中文: 如果一个阀门通径可以满足工作流量和要求，并且压降处于空穴区外，则可以安装单个减压阀。
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英文: After the normal air-running, engineer must move the regulating handle to the position corresponding to the pressure which has been set by the pressure reducing valve (pos. no. 28) when the speed of the main engine is more than the air cut speed.
中文: 在正常的空气运转后，轮机员必须移动调节手柄到相应的压力的位置，其压力已由压力减压阀28设定，当主机的转速已经高于空气切断转速。
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英文: Aiming at the disadvantages of present loading system applying proportional relief valve or servo valve, loading system with 3-way proportional pressure reducing valve is proposed.
中文: 针对目前采用比例溢流阀和伺服阀加载存在的不足，提出在钢坯修磨机上采用比例三通减压阀加载。
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英文: Provide a three-valve bypass to facilitate inspection of the reducing valve without interrupting service.
中文: 配置一个三阀旁路来简化减压阀的检查，不需要断开管线服务。
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英文: The control air is supplied to the P.G. governor at the proper rate reduced by the pressure reducing valve (pos. no. 35).
中文: 如果你打开此开关，三通电磁阀34动作，控制空气通过三通电磁阀被传送到P。G。调速器代替扫气空气。
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