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单词
valve for preventing return flow (back-water gate)
释义
valve for preventing return flow (back-water gate)
[固定建筑物] 回流防止阀(回水门); 用于防止回流的阀(回流闸)
[机械工程 照明 加热] 防回流阀门(回流闸门)
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更新时间:2026/6/2 5:38:36