| 单词 | expansion joint |
| 释义 | expansion joint [ik`span·shǝn ´jȯint] CIVIL ENGINEERING 1. In masonry, a flexible bituminous fiber strip used to separate blocks or units of concrete to prevent cracking caused by thermally induced expansion and contraction. 2. A union or gap between adjacent parts of a building, structure, or concrete work that permits the relative movement caused by temperature changes to occur without rupture or damage. GEOLOGY See <<sheeting structure>> MECHANICAL ENGINEERING 1. A joint between parts of a structure or machine to avoid distortion when subjected to temperature change. 2. A pipe coupling which, under temperature change, allows movement of a piping system without hazard to associated equipment. |
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