The left leg kicks to counter-balance the vertical force component of elevating and recovering right arm.

左腿打水来平衡右臂的抬升和空中移动长生的垂直分力。

youdao

He's the most important songwriter of the last 50 years, in a culture in which songwriting has always been a major force, a major component.

他是过去五十年里最重要的曲作者，而在美国文化中，作曲一直是主要的推动力和组成部分。

youdao

Don't get things mixed up, just the z component of the force becomes Gm triple integral of delta cos phi sine phi d rho d phi d theta.

不要搞混，只是力的z分量罢了,它是Gm∫∫∫δcosφsinφdρdφdθ

youdao

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