One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure.

误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。

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The source of error and its correction were analysed.

分析了误差来源，讨论了误差修正方法。

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Finally, it summarizes the source of error in wireless location.

最后提到无线定位的误差来源。

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The source of the error is painfully familiar to anyone who deals with U.S. budget projections.

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"The scientists are right to be extremely cautious about interpreting these findings, " said Jim Al-Khalili, a physicist from the University of Surrey, who suggested that a simple error in the measurement is probably the source of all the fuss.

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