expendvt.花费；消耗Expendable Light Markers一次性灯光信标expending agent material膨涨材料expended meta arithmetic扩展元算法Expendable Launch Vehicle一次性运载火箭Expendable Jamming System一次性人为干扰系统expend all one's energies这是一个怀疑一切的时代。Expendable Radio Sonobuoy一次性无线电声呐浮标Expendable Stored Project消耗品贮藏计划expendable pattern casting一次模铸造Expendable Acoustic Device一次性使用的音响装置

1. An Expanded bed is a stable fluidized bed which has no backmixing.It can capture product directly from the crude feed without the removal of solid particles.
   膨胀床是稳定无返混的流化床，它可直接从料液中吸附目标产物，不需预先除去料液中的颗粒。