metal will thermal expansion and contraction due to its own temperature金属垫片 [词典] [化] metallic gasket; [例句]没有受力螺栓,省去了金属垫片或垫块; there are no bolts for axial stress of internal pressure and no metal gaskets.
coefficient of linear thermal expansion线性热膨胀系数coefficient of linear thermal expansion线性热膨胀系数coefficient of linear thermal expansion 线性热膨胀系数[物] 线热膨胀系数in this paper, the test method of the linear thermal expansion coefficient of hardened cement paste is studied. 本文研究了水泥石线性热膨胀系数的测试方法,并针对本试验方法制定了相关的试验制度