| 单词 | hinged valve |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔bivalve〕A mollusk, such as an oyster or a clam, that has a shell consisting of two hinged valves.双壳类：一种软体动物，如牡蛎或蛤，有由两个开合的瓣组成贝壳的动物美国传统〔bivalve〕Having a shell consisting of two hinged valves.双瓣壳的：有由两个开合的瓣组成贝壳的美国传统〔clack valve〕A hinged valve that permits fluids to flow in only one direction and clacks when the valve closes.瓣阀：一种铰接的阀，只容许流体单向流动，关闭时发出卡嗒声美国传统 |
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