位棋盘压倒其他表示方法的主要理由是速度，但其中也有权衡。
The main reason to use the bitboard over other representations is speed , but there are tradeoffs .
市场在3000点附近的支撑位以下运行时最危险的特征是下跌的速度。
The most dangerous feature of the market move below support near 3000 was the speed of the fall.
棕煌蜂鸟悬停时引发的尾流。黄色的矢量位点是通过粒子图像测速技术显现的气流速度。
The wake of a hovering rufous hummingbird. Yellow vectors show air velocity, revealed by particle image velocimetry.
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