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Based on radiative transfer theory,the reflection properties of cirrostratus consisting of hexagonal ice crystals or equivalent spheres are computed by using the adding-doubling method,respectively.The results show that the Mie scattering calculations at the region of λ≈3.0 μm give good agreement with the hexagonal ice crystals.

根据辐射传输理论，应用累加法，分别计算了由冰晶粒子和等效球形粒子构成的卷层云的多次散射特性，计算结果表明当入射波长λ≈3.0 μm时，等效球Mie理论可以很好地用于计算卷层云的反射特性，但是当λ。8 μm时，尤其在可见光区，将引起显著的误差。

The country was big in 1815 by European standards, and it would get even bigger. In 1803, President Thomas Jefferson negotiated the purchase of the Louisiana territory from the France, doubling the size of the united states. In 1825, the Erie Canal opened to serve as a crucial waterway through New York state.

依照当时欧洲标准来看，这是个很大的国家，而且会越来越大。1803年 Thomas Jefferson 总统从法国买下了 Louisiana 的土地，美国领土增加了一倍。1825年，伊利运河开通，成为贯穿纽约的重要水路。

SSG-?BO. Stella Lines Oy Ltd is doubling its present freight capacity due to a new cooperation with UPM. As from the beginning of 2008 there will be weekly sailings between Kotka, Rauma and Gdynia as well as up to four ro ...

令船公司尴尬的是在石油需求旺盛和运输繁忙的同时，油运市场的价格却在持续走低，在油价屡创新高时，运力过剩的油运运价经过二季度的短暂反弹重归下降通道，进入第四季度仍未见转旺，部分船舶成本较高的船东已经濒临亏损，油轮运价持续下跌已成行业瓶颈。

The Louisiana Purchase of 1803 increased the territory of the United States by approximate 846,000 square miles, practically doubling the area of the United States.

参考译文：1803年的Louisiana购买使得美国的疆土扩大了846，000平方英里，基本上是翻倍。

And distances were great. The country was big in 1815 by European standards, and it would get even bigger. In 1803, President Thomas Jefferson negotiated the purchase of the Louisiana Territory from France, doubling the size of the United States.

距离很远。按1815年的欧洲标准来看，那里美国是很大的，并且甚至更大。1803年， Thomas Jefferson 总统从法国那儿购下路易斯安那，使得美国的领土增加了一倍。

And distances were great. The country was big in 1815 by European standards, and it would get even bigger. In 1803, President Thomas negotiated the purchase of the Louisiana Territory from France, doubling the size of the United States.

距离也很远，按1815年的欧洲标准来看，当时美国还是很大的，并且之后还有可能更大。1803年，Thomas Jefferson总统通过谈判从法国手中购买了Louisiana版图，从而美国的领土增加了一倍。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。