The dynamical model included the effects of the earth non-spherical shape, atmospheric drag, solarradiationpressure 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。
2
This radiationpressure 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。
3
Once the sun and planets took shape, heat became readily available in the form of solarradiation, asteroid impacts, and gravitational pressure.