It has been proved by experiments that the difference between calculation data and experimental results is usually less than 5%.

实验表明，计算结果相对于实测数据的偏差一般在5 %以内。

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The difference of heat transfer calculation between spiral plate heat exchanger and single shell and tube heat exchange is discussed in the article.

本文讨论了在传热计算中螺旋板换热器与单壳程、单管程列管式换热器的差异。

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Thermodynamic calculation methods of steam turbine stages were summed up, and the difference of thermodynamic calculation methods between different types of turbine blades was analyzed.

在对汽轮机级的热力计算方法进行总结的基础上，分析了不同类型的叶片级的热力计算方法的异同。

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What was the difference between the satellite-fed number and Mr Sharma's "manual" calculation?

BBC: India

Satellites have long been used to track ice extent (area), but calculating the thickness of the marine floes requires the overflying spacecraft to gauge the difference between the top of the ice surface and the top of the water - a relatively simple calculation then gives the overall volume.

BBC: Launch success for Esa's Cryosat-2 ice mission