练习效应则是由于交换耦合系统中反铁磁层的热激活反转所引起的。
The training effect is a result of thermally activation reversal of the antiferromagnetic layer through the exchange coupling.
较详细介绍了反蛙泳的陆地练习、水中练习方法，为快速掌握游泳技术提供了简单有效的教法。
This article in details introduces the land and the water practice methods of counter-breaststroke which provides a simple and effective law for fast grasping the swimming technology.
速度练习。甩腿。勾腿。无改变带领下的重心转换。速度与反速度。
Speed exercises. Voleos. Ganchos. Changes of weight without altering the leading. Tempo and contra tempo.
当你学会如何快速进行横向移动时，大跳练习对你来说将会易如反掌。
As you learn to accelerate the horizontal motion, jumps will immediately become easier.
当你学会如何快速进行横向移动时，大跳练习对你来说将会易如反掌。
As you learn to accelerate the horizontal motion, jumps will immediately become easier.
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