expansionaryadj.扩张性的
expansionn.膨胀;扩展;扩充
expansion deaerator膨胀式除气器
expansionist policy经济扩张政策
expansion type hone[机] 扩张式搪磨工具
expansion of output扩大产量
expansion of cavity小孔扩张
expansion of soilds固体膨胀
expansion of bottom扩底
expansion of coiler胀径
expansion in series展成级数
expansion crosslink交联-膨化