An area of main storage that holds the addresses of the unit control blocks and system control blocks for each symbolic unit. 主存储器中存放每个符号设备的设备控制块和系统控制块的地址的一种区域。
Development of Symbolic Unit in Auto CAD for Geological Maps and Drawings AUTOCAD中地质绘图符号单元的开发
Symbolic units are bipolar consisting of a semantic unit defining one pole and a phonological unit defining the other. 象征单位有两极,一极是语义单位,另外一极是语音单位。
The indeterminacy of meaning is firstly reflected in the indeterminacy of cognitive frame to which a symbolic unit belongs. 意义的不确定性首先体现在语符所属认知框架的不确定。