“plumb-joint”的英英意思

单词 plumb-joint
释义 ˈplumb-joint
[For plumbed joint: cf. plumb v. 5.]
A lap-joint in sheet-metal in which one of the edges to be joined is laid flat over the other and soldered down; a soldered lap-joint.
1875in Knight Dict. Mech. 1751.

 

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