By compressing his torso, the LZR not only lets him go faster, because it maintains a tubular shape, but also allows him to swim longer with less effort.

通过挤压身体，LZR不仅使选手游得更快，而且因为助于保持管状身形，还可以使选手游得更远而较少费力。

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Based on the test results and movement equation established, the relationship between drag coefficient and tubular shape is obtained and the drag force imposed on pipe is calculated.

根据试验结果和建立的运动方程，获得阻力系数与圆管形状的关系，并计算了圆管所受到的拖曳力。

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The plane body presents a tubular shape or a flat hollow ribbon, one end of the elastic ribbon is arranged inside the plane body to be connected with the plane body, and the other end is a free end.

机身呈管状或扁平空心带状，橡筋一端设置在机身内并与机身相接，其另一端为自由端。

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Not only would passengers have to accept windowless flight, but several technical problems would also need to be overcome, including the need to manufacture pressurised cabins that are not the standard tubular shape.

ECONOMIST: Green aircraft