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	self-diagnostic function self-diagnostic program self-diagnostic routine self-diagnostics self diagnostics self-diagnostic test self-diagnostic testing self-diagnostic testing routine self dialogue self-differentiation self differentiation self-diffidence self-diffraction self diffusion self-diffusion selfdiffusion self diffusion coefficient self-diffusion coefficient self diffusion current self-diffusion self diffusion velocity selfdigestion self-digestion self-digestion self-dignity

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。