This raises the matter of a lake's residence time.
这就引起了湖泊的“停留时间”问题。
A given lake's residence time is by no means a fixed quantity.
某一湖泊的“停留时间”并不是一个固定值。
They range from a few days for small lakes up to several hundred years for large ones; Lake Tahoe, in California, has a residence time of 700 years.
它们从小湖的几天到大湖的几百年不等;加州的太浩湖有700年的滞留时间。
应用推荐