“Ursa Major”的概念、定义、翻译、参考文献-科学参考

单词	Ursa Major
释义	Ursa Major [`ǝr·sǝ `mā·jǝr] ^ASTRONOMY A northern constellation, right ascension 11 hours, declination 50°N; it contains a group of seven stars known as the Big Dipper.
随便看	trifoliosis triformol trigatron trigeminal nerve trigeminal neuralgia trigger trigger action trigger bolt trigger circuit trigger control trigger diode triggered spark gap trigger electrode trigger extension trigger finger trigger housing triggering trigger level trigger motor trigger pull trigger pulse trigger shaft trigger squeeze trigger switch trigger tube

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