1)draper classification,德雷伯分类2)Sudbury,萨德伯雷3)henry draper catalog,亨利 德雷伯分光星表4)classification of thunder precaution,防雷分类5)Findlay Grubert theorem,芬德雷-格鲁伯特定理6)Fredholm integral equation of the second kind,第二类弗雷德霍姆积分方程
用法和例句
From Moonscape to One of The Ten Best Canada Cities in Which to Live--Sudbury s Landscape Healing.;
