Up near the jet stream above New York, the wind power density can reach 16 kilowatts per square meter.

在纽约上空的射流层（对流层顶）附近，风能密度可达16千瓦每平方米。

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In the first stage the jet stream lies well to the north and it takes a general west-east direction.

在第一阶段急流远在其北且一般为由西向东的方向。

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If a change in the jet stream really is a leading indicator of solar activity, then no new cycle is on the horizon.

如果高速气流的变化真地是太阳活动最重要的指示物，那么新的太阳活动周期还未露端倪。

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In the past, pilots thought airplanes moving up and down in the jet stream caused such turbulence.

MSN: Blame gravity waves for turbulence - Technology & science - Science - LiveScience | NBC News

Later in the summer, the jet stream moved back to its normal position and the usual rainfall service was resumed.

BBC: Scotland's summer of two halves

The jet stream consists of strong winds about 10 miles above the Earth that control storm paths and mark boundaries between cooler and warmer air.

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