研究教学交互的规律对教学活动，特别是对以计算机为基本教学媒体的教学活动具有十分重要的意义。

A study of the law of communicative teaching has very important significance to the teaching activities, especially those based on computer media.

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通过交互手段，可以更好地发现数据之间各种内在联系与变化规律，从而可以更准确地把握空气污染物的变化趋势。

Through interactive methods, the intrinsic relation and the change rule of the data can be understood more accurately and the change tendency of the air pollutant can be grasped.

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揭示了机芯放音系统传动件参数和参数间交互作用对机芯抖晃的影响规律，以寻求传动件参数间的最佳匹配。

The general regularity for mutual effect of some parameters and effect of the main parameters of the driving parts on "wow and flutter" are presented to find the best parameter matching.

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