Riders seat allows collection, balance, steering, forward movement and control of the horse to take place, as well as providing the rider with stability and balance when on board.

骑士的坐姿既可以实现收缩，平衡，转向，向前运动和对马的控制，又可以提供给骑士在马上的稳定和平衡。

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Nikolai Bukharin of former Soviet Union put forward the concept of "balance of movement" about economic balance and social balance.

前苏联布哈林先生提出的经济平衡和社会平衡的“动的平衡”观点。

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