英语词汇“expanding arm”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	expanding arm
释义	expanding arm expanding arm [ik′spand·iŋ ′ärm] (astronomy) A spiral arm of the Galaxy consisting of neutral hydrogen that lies between 2.5 and 4 kiloparsecs beyond the galactic center and is moving out from it at about 85 miles (135 kilometers) per second.
随便看	toj tojc tojde to jesus through mary tojet tojh toji tojikistan tojikiston tojll tojo to jockey for position tojo eiki tojo hideki tojo, hideki to join battle tojr tojt to jump a claim to jump at to jump at the chance to jump down someone's throat to jump in with both feet to jump one's bail to jump the gun

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