当环境条件稳定时，偏离率相对较低，但当河流受到严重干扰时，偏离率会急剧增加。

Straying rates remain relatively low when environmental conditions are stable, but can increase dramatically when streams suffer severe disturbance.

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在这种情况，会有相对于理想情况的正的偏离。

And this is a case where there's a positive deviation from ideality.

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带负电荷的微粒子——电子，在绕核运行中，相对于一个纯粹的球形而言，其轨道偏离度远远小于0.000000000000000000000000001 cm。

Electrons, negatively-charged particles which orbit the nuclei, deviates from absolute roundness by less than less than 0.000000000000000000000000001cm.

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