The system with unknown input is translated into an equivalent system without unknown input by a simple algebraictransformation.
通过一个简单有效的代数变换，将具有未知输入的系统变换成一个不含未知输入的等价系统；
2
This method is accomplished with calculation grids generated by an algebraictransformation, and thus it can be easily applied to the design analysis of centrifugal impellers.
该方法的差分计算网格通过代数变换关系生成，可方便地应用于离心叶轮设计分析。
3
Some algebraic laws of Timed RSL are presented, which can be proved from the denotational semantics, and be used in program transformation and optimization.