“Puppis A”的概念、定义、翻译、参考文献-科学参考

单词	Puppis A
释义	Puppis A [`pǝp·ǝs `ā] ^ASTRONOMY An extended, nonthermal radio source, the remnant of a supernova that exploded about 10,000 years ago, about 1.8 kiloparsecs (3.5 × 10¹⁶ miles or 5.6 × 10¹⁶ kilometers) from the earth.
随便看	Pacinian corpuscle pack package packaged circuit packaged magnetron package freight package power reactor packaging packaging density pack artillery pack assembly pack builder pack carburizing packed bed packed decimal packed tower packed tube packer packer fluid packer test packet packet gland packet switching packet transmission pack hardening

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