| 单词 | pump plunger |
| 释义 | Definition of pump plunger in English:pump plungernoun
OriginMid 19th century; earliest use found in John Weale (1791–1862), publisher and writer on architecture. Definition of pump plunger in US English:pump plungernoun
OriginMid 19th century; earliest use found in John Weale (1791–1862), publisher and writer on architecture. |
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