... 气-液动装配 pneumatic-hydraulic actuator 喷泉阀 spray water valve 单闸板平板闸阀 single disc flat gate valves ...
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water spray system relief valve 水喷射系统安全阀
water spray system control valve 水喷射系统控制阀
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Emergency Open valve Emergency Open valve used in water spray fire-extinguishing systems, has yet to be implemented in engineering.
紧急开启阀应用于水喷雾灭火系统，目前尚未在工程中实施。
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