“safety valve”的概念、定义、翻译、参考文献-科学参考

单词	safety valve
释义	safety valve [`sāf·tē ´valv] ^{MECHANICAL ENGINEERING} A spring-loaded, pressure-actuated valve that allows steam to escape from a boiler at a pressure slightly above the safe working level of the boiler; fitted by law to all boilers. Also known as safety relief valve.
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