frost valve
noun
A valve which can be opened to allow water to escape from a part of a pipe, pump, etc., where it is liable to freeze.
Origin
Mid 19th century; earliest use found in The Mechanics' Magazine.
| 单词 | frost valve |
| 释义 | frost valvenoun A valve which can be opened to allow water to escape from a part of a pipe, pump, etc., where it is liable to freeze. Origin |
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