... ammeter 电流表 automatic valves 自动阀 auxiliary relay 辅助继电器 ...
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pump with automatic valves 带自动控制阀的泵
automatic flow control valves 自动流量平衡阀
Automatic control valves 自动控制阀
automatic ball valves 自动球阀
automatic balancing valves 自动流量平衡阀
Automatic Recirculation Valves 自动再循环阀
automatic five-way valves 自动五通阀
Automatic control light valves 自控光阀
automatic temperature control valves 自动温控阀
The measure lays the foundation to require the use of remote controlled and automatic shut-off valves on new pipelines.
FORBES: Pipeline Explosion Rattles Natural Gas Industry
To that end, a government watchdog group is recommending the use of automatic shut-off valves, as opposed to those that must be manually attended.
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