If a review of the frequency distributions for each source points to a many-to-one condition and one source has only unique values, then it is a likely reference source.

如果查看每个源的频率分布发现存在多对一的情况，并且一个源只有一个惟一的值，那么它很可能就是引用源。

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Where the frequency distribution shows data values decreasing in occurrence from some common condition to a rare condition, a skew exists.

如果频率分布显示数据值从经常出现变为很少出现，则存在倾斜。

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The regular numerical algorithm is MOM, whose general impedance matrix has a large condition number at the resonance frequency points, which brings an inaccurate result.

常规散射特性计算方法如矩量法中的广义阻抗矩阵在谐振频率点上条件数过大，导致计算不准确。

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Ranger IV was also equipped with a seismometer and radio transmitter, designed to be released in a small capsule from the rocket before impact and land on the Moon in sufficiently good condition to measure the frequency of natural earthquakes in the body of the Moon.

BBC: 1962: First US rocket lands on Moon