expansionaryadj.扩张性的
expansionn.膨胀;扩展;扩充
expansion mach wave膨胀马赫波
expansion of vapour膨胀汽
expansion appliance膨胀补偿器
expansion diffusion扩展扩散
expansion revamping扩能改造
expansion ellipsoid膨胀椭球体
expansion programme护展计划
expansion structure膨胀结构
expansion pipe bend伸缩管弯
expansion suspender伸缩悬杆