单词 | plumber's force-pump |
释义 | Definition of plumber's force-pump in English:plumber's force-pumpnoun
OriginLate 19th century; earliest use found in Edward H. Knight (1824–1883), patent lawyer and expert in mechanics. Definition of plumber's force-pump in US English:plumber's force-pumpnoun
OriginLate 19th century; earliest use found in Edward H. Knight (1824–1883), patent lawyer and expert in mechanics. |
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