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单词 θ214301
释义
society > occupation and work > equipment > machine > parts of machines > control(s) > [noun] > valve > parts of (4)
shank1660

The stem or straight part of anything. Cf. shaft, n.2 The cylindrical portion of a stop-cock.

seat1841

The surface on which the head of a poppet-valve rests when the valve is closed.

mica flap1906

the flap of a mica valve.

spool1960

The sliding member of a spool valve.

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更新时间:2024/12/25 0:01:15