In addition, the variation of pitch had some effect on the image noise.

此外，当螺距改变时，图像噪声亦呈现出规律性的变化。

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In Chinese, lexical tones and intonation both depend on the variation of pitch.

在汉语中，声调和语调均依赖于音高的变化。

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In the words flow, the reading intonation, which is related to tone, degree, stop and linking, speed and other factors, is the general pattern of the pitch variation.

朗读的语调是语流中呈现出来的音高变化的总体模式，它与字调、轻重、停连、快慢等因素有关。

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