expansionsn.扩展(expansion的复数形式)
expansionn.膨胀;扩展;扩充
expansion project扩建企业
expansion bracket伸缩架
expansion fashion膨胀方式
expansion bushing膨胀衬套
expansion program扩建工程
expansion muffler扩张式消声器
Expansion of base扩底
expansion pattern扩张方式
expansion mapping膨胀映射
expansion theorem展开定理