You only need to set the initial focus once, because Swing will always restore focus once it has been initially set.

您只需设置初始焦点一次，因为Swing始终会将焦点恢复到初始的设置。

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In particular, with time evolution, distribution and swing of the mean spin direction is closely related to the structure of the space where the initial coherent state centred in.

特别是随着时间的演化，系统的平均自旋方向的分布和摆动也与初态所处的空间结构有着密切的联系。

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Although In-post Practice is now in full swing on the practical level, theoretical study on the In-post Practice is still at the initial stage, lacking theoretical research based on literature review.

虽然在实践层面顶岗实习已开展得如火如荼，但关于顶岗实习的理论研究仍在起步阶段，尤其缺乏基于文献梳理的理论研究。

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After some literal hand-holding with a human to understand the basics of a ping-pong swing, a TUD robot can gradually abstract those motions and return the ball in situations beyond the initial example.

ENGADGET: German robot arm learns ping-pong as it plays humans, might rival its masters