... EB extended bonnet 阀盖加长颈 EPV elector-pneumatic valve 电动-气动阀 ESV emergency shut valve 紧急切断阀 ...
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短语
电动气动阀
electro-pneumatic valve
;
electric pneumatic valve
信号机电动气动阀
electropneumatic signal valve
转辙机电动气动阀
electro-pneumatic switch valve
电动气动分配阀
electropneumatic distributing valve
电动气动控制阀
electro-pneumatic valve