expansion 是什么意思？

膨胀, 扩张

an increase in the volume of a substance when heated

示例:• Thermal expansion is why gaps are left in bridge construction.热膨胀是桥梁施工中留有间隙的原因。• The expansion of water when it freezes can burst pipes.水结冰时的膨胀会导致管道爆裂。同义词:dilationswellinginflation