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单词 θ212638
释义
society > occupation and work > equipment > pump > [noun] > valves > case containing (1)
box1677

The case or housing of a pump; a case enclosing the valve of a pump. Also: the piston of a simple reciprocating pump. Cf. earlier pump box, n.

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更新时间:2024/12/23 8:30:25