级: level; rank; grade分: component亚级: antepenultimate order; substate级分: fraction亚级；亚态: substate维吉尼亚级: virginia class submarine级分隔: a class division; b class division巴伐利亚级战列舰: bayern class battleship弗吉尼亚级核潜艇: virginia class submarine弗吉尼亚级潜艇: virginia class submarine瓦尼亚级改进型: vanya mod; vanya-mod维吉尼亚级潜艇: virginia class submarine等级分配；年级分配: grade distributionn级分辨率: n-level of resolution按等级分类: astm)30classification by rank按等级分析: coal analysis by rank按煤级分类: classification by rank病因级分: etiologic fraction层级分离: separation of levels层级分析: hierarchical analysis初级分离: first order segregate初级分离子: first order segregant; first-order segregant次级分岔: secondary bifurcation次级分离: second-order segregation; secondary segregation次级分离子: second order segregant; second-order segregant
