Discovering the inputs and outputs of rivers is a matter of measuring the discharges of every inflowing and outflowing stream and river.
发现河流的输入和输出，就是测量每一条流入和流出的河流的流量。
2
An array of tiny pieces of paraelectric material can sense the heat radiated by a person, and the pattern of the array's electrical outputs can then be used to construct an image.
一组微小的顺电材料可以感知一个人发出的热量，然后利用该阵列的电输出模式构建图像。
3
Once all this information has been gathered, it becomes possible to judge whether a lake's flow is mainly due to its surface inputs and outputs or to its underground inputs and outputs.