英语词汇protoplanetary nebula怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	protoplanetary nebula
释义	protoplanetary nebula 简明释义原行星云
随便看	looping-in cable looping machine looping meander looping merchant mill looping mill looping mill looping mill rolling looping needle loop network looping pipe looping pit looping plume looping looping seam looping statement Looping structure looping table loop test loop testing looping tower looping trough looping type rolling mill loop initialization loop-in mutagenesis loop in mutagenesis

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。