water pocket
noun
1 Engineering (in a steam boiler) a compartment or division containing a portion of water.
2A natural depression or cavity in which water collects.
Origin
Mid 19th century; earliest use found in Journal of the Franklin Institute.
| 单词 | water pocket |
| 释义 | water pocketnoun 1 Engineering (in a steam boiler) a compartment or division containing a portion of water. 2A natural depression or cavity in which water collects. Origin |
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