牛顿也证明了漩涡能产生椭圆运动纯属偶然。
Newton also proved incidentally that a vortex could not generate elliptical motion.
近壁区内颗粒主要显示下降运动以及偶然的上升，尤其是在流化数较大时颗粒下降运动更明显。
The granule movement detected in the wall vicinity showed prevailingly rising and occasionally falling, especially at high velocity of gas.
另外由于运动员选拔制度的缺失等，导致其参训之路障碍重重，运动员选拔具有较大的偶然性、被动性。
In addition, there were many obstacles when they participated in the sport training as the lack of player selection system. Therefore, the selection of the athletes was accidental and passive.
不管受伤是偶然，还是必然，运动员不是在竞技场上输给对手，而是被自身的伤病绊倒，这是英雄的悲剧，更是竞技体育悲情的一面。
No matter injury was accidental or inevitable, athletes in the arena is not lost on opponents, but their injuries were tripping, this is a heroic tragedy, is more tragic side of competitive sports.
不管受伤是偶然，还是必然，运动员不是在竞技场上输给对手，而是被自身的伤病绊倒，这是英雄的悲剧，更是竞技体育悲情的一面。
No matter injury was accidental or inevitable, athletes in the arena is not lost on opponents, but their injuries were tripping, this is a heroic tragedy, is more tragic side of competitive sports.
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