Underlying the front-end parsers is a symbolic instruction set – a kind of portable assembly code – which can be translated to any of the supported machine architectures. 因为前端解析器其实是符号化指令集,这种指令集实质上是一组可移植的汇编码,能够翻译到任何支持的机器架构之上。
A program that translates microprograms in symbolic form ( similar to assembly language) into bit patterns that are then loaded into the control store. 一种将符号形式(类似于汇编语言)的微程序翻译成位模式的程序,然后位模式被装入控制存储器。
General electric symbolic assembly language 通用电气符号汇编语言
Attach symbolic text to a specific part in an assembly view. 可将符号文字附加到装配视图中特定的零件上。
The feasibility of an assembly operation can be judged by a series of symbolic operations of OBDD based on the new model. Then all feasible assembly sequences of given products can be reasoned out in this way. 基于此模型,可以通过一系列的OBDD符号运算完成装配操作的可行性判断,从而实现了装配序列的推理。