“periastron”的概念、定义、翻译、参考文献-科学参考

单词	periastron
释义	periastron [¦per·ē¦as·trǝn] ^ASTRONOMY The coordinates and time when the two stars of a binary star system are nearest to each other in their orbits.
随便看	bipolar power supply bipolar signal bipolar transistor bipotential bipotential electrostatic lens bipotentiality biprism biprism interference bipropellant biquadratic biquadratic equation biquartic filter biquartz biquinary abacus biquinary notation biquinary number system biradial symmetry biradical biramous birch birch tar oil bird birdcaged wire bird-hipped dinosaur bird louse

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