松弛变量 meaning in English

slack variable

( lean at 15 , 30 degree , eye - closed , eye - opened , etc . ) ( 4 ) the research illustrated the relationship between driving fatigue and driving time , speed , environment , and therefore came up with a chain of standards : the longest time for continuous safety driving ( at different ages , conditions ) , day driving time , the highest speed for safety drivin
互动性分析，驾驶疲劳度是一个全程的、完整的、具有一定时间段的约束条件，它的松弛变量特征表现明显。对不同动态交通人机环境系统中驾驶疲劳进行评估，求出致驾驶疲劳影响因子的量化值。