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。
Up near the jet stream above New York, the wind power density can reach 16 kilowatts per square meter.
文中分别研究了射流交叉角度和密度比对径向速度分布、回流区长度、回流量的影响。
The results show that the angle of cross jets and density ratios have important influences on the velocity distribution on radial, the length of reflux zone and the quantity of reflux.
文中用莫尔条纹法测出了射流冲击场的气流密度分布。
The flow density distributions of jet flow shock field have been measured using Moire schlieren method in this paper.
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