The dynamical model included the effects of the earth non-spherical shape, atmospheric drag, solar radiation pressure as well as lunar and solar perturbations.

在建立动力学模型中，计及了地球扁球形的摄动、大气阻力、太阳辐射压的效应以及日月引力摄动。

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This radiation pressure is thought to shape the tails of comets and is useful for pushing solar sails in space.

这种辐射压力被认为是彗尾形成的原因。 另外，它也是太阳帆在太空中前进的动力来源。

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Once the sun and planets took shape, heat became readily available in the form of solar radiation, asteroid impacts, and gravitational pressure.

太阳和行星成形后，太阳辐射、小行星撞击以及重力压力继续提供着热量。

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Once the sun and planets took shape, heat became readily available in the form of solar radiation, asteroid impacts, and gravitational pressure.

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