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。
Discovering the inputs and outputs of rivers is a matter of measuring the discharges of every inflowing and outflowing stream and river.
每次我们洗牛仔裤的时候，小块的牛仔布就会从洗衣机里流出来，流入世界上的河流、湖泊和海洋。
Every time we wash our jeans, tiny bits of denim will flow out of our washing machines, down into the world's rivers, lakes and oceans.
近来，你在春池的河流出口处建造和维护了木堆水坝，这是违规的。
Construction and maintenance of two wood debris dams across the outlet stream of Spring Pond.
研究人员于本周二报告称，世界上人口最密集的一些地区的河流出现了流量下降的情况，而这大多是由气候变化所致。
Rivers in some of the world's most populated regions are losing water, many because of climate change, researchers reported on Tuesday.
世界上人口最密集的一些地区的河流出现了流量下降的情况，而这大多是由气候变化所致。
Rivers in some of the world's most populated regions are losing water, many because of climate change.
发源于委内瑞拉东南部，圭亚那边境附近的一条河流，向北流出885公里(550英里)与奥里诺科河汇合。
A river rising in southeast Venezuela near the Guyana border and flowing 885 km (550 mi) northward to join the Orinoco river.
本文结合近些年来我国北方河流出现的河床枯萎现象，分析了枯萎疏浚的基本原理及几个关键技术问题，对于目前在黄河等枯萎河道上采用疏浚防洪有一定的参考价值。
Based on the new phenomena of the shrinkage of river channels in North China, analyses of the basic principles and some key problems for dredging under shrinking conditions are presented.
本文结合近些年来我国北方河流出现的河床枯萎现象，分析了枯萎疏浚的基本原理及几个关键技术问题，对于目前在黄河等枯萎河道上采用疏浚防洪有一定的参考价值。
Based on the new phenomena of the shrinkage of river channels in North China, analyses of the basic principles and some key problems for dredging under shrinking conditions are presented.
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