名词 safety valve:
-
a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
- The safety valve of his anger opened.
他控制怒火的安全阀打开了。
- No relief valve is required where two pressure reducing valves are installed.
如果装上两个减压阀，就不需要安全阀。
