Decion.德西奥Decn.十二月n.美国数字电子公司declination circle赤纬圈,时圈decalescent outfit硬化温度测定装置decapryn succinage琥珀酸杜克西拉明Decca radio system台卡导航系统decreasing operator减算子decelerating torque减速力矩decurrent leaves.下延的树叶declination compass磁偏计Decaject-L.A.醋酸地塞米松混悬液decinarmal solution分当量溶液