critical threshold potential level临界阈电位水平
threshold water level阈值水位
threshold signal level[电子] 门限信号电平
threshold value level function阈值电平函数
threshold value level阈值电平
threshold expenditure level极限消费水平
threshold initiation level阈值起爆水平
threshold smell level可嗅出的最小含量
automatic threshold-level control自动阈值控制