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单词 expansion-joint
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expansion-joint
expansion-joint n. (see quots.).
ΚΠ
1849 J. Weale Rudim. Dict. Terms Archit. ii. 179/1 Expansion-joint, a stuffing-box joint connecting the steam pipes, so as to allow one of them to slide within the enlarged end of the other when the length increases by expansion.
1864 Webster's Amer. Dict. Eng. Lang. Expansion-joint, an attachment of the framing to the boiler, which allows the boiler to expand without bending the framing.
1882 Worcs. Exhib. Catal. iii. 5 Samples of improved expansion joints.
extracted from expansionn.
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