system variables短语⁴⁸⁷⁷¹ 基本例句 系统变量 By studying the relation among the system variables and the disturbance response of output, corresponding relation between input and output was changed during the control system design. 研究了输出变量与输入变量之间的关系及对干扰的响应，改变了原油脱水过程控制方案中的输入、输出变量间的对应关系； cnki