通过科学地训练方法使摆动腿发挥更好的作用。
So we should use scientific way to improve the quality of long jump.
他们是较重，粗壮，他们有一个厚厚的，四舍五入处理，使摆动议案。
They are heavier stockier and they have a thick rounded handle that allows a swinging motion.
在这种情况下，气流速度与扭丝为使摆动片同气流保持位置关系所要产生的扭转量之间存在某种关系。
There will be a relation between the air speed and the amount of twist of the wire necessary to hold the plate in normal presentation to the current.
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