耐受阈: pain tolerance thresholdthreshold of tolerance
Example Sentences:
1.
The temperature of creek segments down from dam no . 2 has exceeded the upper survival limit of juvenile salmons . the spawning season temperature of these segments also tends to surpass normal reproduction temperature range 二号坝以下溪段七、八月的夏季高温已到达幼鲑耐受极限，生殖季节水温亦偏高，为不适于栖息之环境。
