单词	magnetosphere
释义	magnetosphere A comet-shaped region surrounding the earth and other magnetic planets in which the charged particles of the solar wind are controlled by the planet's magnetic field rather than the sun's magnetic field. It extends for some 60 000 km on the side facing the sun but on the opposite side it extends to a much greater extent. The boundary of the magnetosphere is known as the magnetopause (see illustration). The magnetosphere of the earth includes the Van Allen belts. Magnetosphere and magnetopause
随便看	electron biprism electron capture electron diffraction electron gun electron lens electron microscope electron optics electron probe microanalysis electron-spin resonance electronegative electronic mail electronics electronvolt electrophoresis electrophorus electroplating electropositive electroscope electrostatic field electrostatic generator electrostatic precipitation electrostatic units electrostatics electrostriction electroweak theory

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