以前，大陆之间的鸿沟允许水自由流动；而现在地峡形成了一道屏障，把大西洋和太平洋分隔开来。
While previously the gap between the continents had allowed a free flow of water, now the isthmus presented a barrier that divided the Atlantic Ocean from the Pacific Ocean.
水还将逐渐减少，特别需要注意的是如果冰川形成屏障阻碍水流流动，那么冰川消融之后则会引发洪灾。
Flows may also get less regular, especially if glacial DAMS form, withholding water, and then collapse, causing floods.
上古之龙阿纳克·洛斯说：时间之沙将会停止流动，但只有片刻时间！我会召唤屏障。
Anachronos the Ancient says: the sands of time will halt, but only for a moment! I will conjure the barrier.
这些纺织材料相当于一道屏障，它阻止了土壤颗粒的运动，但允许水的流动，以利于排水。
These textile materials act AS a barrier to the movement of soil particles but permit the flow of water necessary for adequate drainage.
声屏障是降低交通噪声等流动性声源的一种有效而经济的方法。
Noise barrier is a kind of effective and economical method to reduce traffic noise.
声屏障是降低交通噪声等流动性声源的一种有效而经济的方法。
Noise barrier is a kind of effective and economical method to reduce traffic noise.
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