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.
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.
考尔德学会了如何找到准确的点连接每根金属线，使所有的部件能够协调摆动。
Calder learnt how to find the precise point to connect each wire so that all the pieces will sway in harmony.
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