combined inlet-outlet valve
air-actuated direction valve 气动控制换向阀 combined inlet-outlet valve 进出组合阀 cineston controller brake valve 钦式控制制动联合阀 (用于地下铁道) ..
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... 组合阀 复合阀 combinationvalve 进出组合阀 outlet valve 安全与进气组合阀 combined safety and air valve ...
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短语
出进组合阀
combined inlet-outlet valve
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