expansionaryadj.扩张性的
expansionn.膨胀;扩展;扩充
expansion of liquids液体膨胀
expansion shell bolt胀壳式锚杆
expansion convention扩展规约
expansion of factory工厂扩建
expansion water seal伸缩式水封
expansion of cutting扩堑
expansion experiment膨胀实验
expansion valve gear膨胀阀动装置
expansion roof tanks膨胀顶储罐
expansion difference扩张差异