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	unified microelectronics corporation unified ministries for christ unified model unified modeling language unified modeling language (disambiguation) unified modeling language for framework instantiation unified modeling technique unified modelling language unified model user interface unified motherboard architecture unified national o-ring unified national round coarse unified national round fine unified navy field test program unified neighbors unified networkers of drug users nationally unified network management architecture unified network of instructors and trusted eliminators unified neutral theory of biodiversity and biogeography unified new orleans plan unified nursing language system unified object type descriptor unified ordering model unified ordering point unified organically functionalized mesoporous network

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。