absolute visual threshold

例句：

1. 1. The researchers found that the absolute visual threshold for this color is very low.
   研究人员发现，这种颜色的绝对视觉阈值非常低。
2. 2. In order to detect a faint signal, we need to increase our absolute visual threshold.
   为了检测微弱的信号，我们需要提高我们的绝对视觉阈值。
3. 3.The scientist measured the absolute visual threshold of the human eye and found it to be around 0.01 lumens per square meter.
   科学家测量了人类眼睛的绝对视觉阈值，发现它大约是每平方米0.01流明。