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	hydropneumatic punching machine hydropneumatic recoil system hydro-pneumatic riveter hydropneumatics hydropneumatic sprayer hydropneumatic, spring hydro-pneumatic spring hydropneumatic spring hydro-pneumatic suspension hydro pneumatic suspension hydropneumatic suspension hydropneumatic system hydropneumatic test hydropneumatosis hydropneumogony hydropneumonia hydropneumopericardium hydropneumoperitoneum hydropneumothorax hydropneumothorax sign hydropoion Hydropolylithionite hydropolylitionite hydropolymer hydropolymerization

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。