定向越野跑运动技术更加多样化复杂化，并具有一定的非周期性。
Directional cross-country running moves technology is complicated more diversifiedly, a certain one is not the periodicity.
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这种非周期性的运动不是量子化的。
Such aperiodic motions are not quantized.
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模块上移
模块下移
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