Reduction valve
[化] 减压阀
🧩 词语组成解析
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
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The driver gave him a few biscuits and a cup of coffee and left him just outside the city.
司机给了他几块饼干和一杯咖啡，就把他丢在了城外。