expansionaladj.扩大；扩展；扩张；膨胀expansionn.膨胀；扩展；扩充expansion spending对新项目的投资expansion equation展开式expansion interface扩展接口expansion of troops扩大部队expansionary demand需求扩张expansionist scheme扩张阴谋expansion of market市场推广expansionary policy经济扩张政策expansion technique扩展技术expansion of credit信用的膨胀