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1·This raises the matter of a lake's residence time.

这就引起了湖泊的“停留时间”问题。

2·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。

3·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。

4·The residence time distribution for reactors with circulating systems is analysed.

本文对外循环反应器的停留时间分布进行了分析和计算。

5·Intelligent picture rotation, surface rotation and residence time can be arbitrarily set.

智能画面旋转，面旋转和停留的时间可以随意设定。

6·The second experiment is to measure the liquid residence time distribution in the packing.

实验之二是液体在填料内停留时间分布的测量。

7·The distribution of residence time of experiment materials is similar to normal distribution.

试验物料在回转窑内停留时间的分布与正态分布比较接近。

8·When the yield was less than 40%, the residence time in two bioreactors was approximately equal.

研究结果表明：当转化率小于40％时，酶反应在两种反应器中所需的停留时间相当。

9·The velocity profile and residence time distribution in cold model of Texacogasifier were measured.

测定了德士古气化炉的冷态速度分布和停留时间分布。

10·The compact matrix structure and short hydrologic residence time result in the low treatment efficiency.

致密的基质结构和短暂的水力滞留时间是造成处理效率偏低的主要原因。