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单词 pump bore
释义

> as lemmas

pump bore
pump bore n.
ΚΠ
1760 Philos. Trans. 1759 (Royal Soc.) 51 6 Without incurring the inconvenience of enlarging the pump-bores.
1816 in S. I. Prime Life Samuel F. B. Morse (1875) 91 The pump-bore is five inches in diameter.
1999 More: the Ficht Atomisation Thread in rec.boats (Usenet newsgroup) 18 Mar. Fluid flowing past the ball..between the ball and the pump bore.
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