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单词 pot-miser
释义

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pot-miser
pot-miser n. Obsolete rare a kind of boring tool (see miser n.3) in which earth is forced up a continuous spiral lip running round the inside of a cylinder and discharged at the top.
ΚΠ
1890 Cent. Dict. at Miser In the so-called ‘pot-miser’, used in pebbly clay there is no valve, but the soil is forced upward by a worm on the outside of the pot.
extracted from potn.1
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更新时间:2025/1/30 13:21:13