... [ three-phase current ] 通过三根导线，每根导线作为其他两根的回路，其三个分量的相位差依次为一个周期的三分之一或120°位相角的电流 [ upper reaches of river ] 上游 [ upper class ] 旧指社会地位高的 ...
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In one part of the upper reaches of the Madison river, a whole mountain began shifting, then came crashing down to fill the deep valley and dam the great river with millions of tons rock and trees.
在麦迪生河上游的一条支流处，一整座山开始移动，之后，它崩塌下来填满深深的山谷，上百万吨岩石和大树如坝般阻挡住大河。
We drift along the creeks of the tranquil upper reaches of the Noosa River, the low hum of the diesel engine a backing to the sounds of wind and lapping water.
游艇沿宁静的小溪终于进入了努萨河，发动机的低鸣与风声水声交杂相映。
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