二级: two stage; two level; second ...结构: structure; composition; cons ...超二级结构: motif; super secondary structure; supersecondary structure二级结构改变: secondary structural change二级结构预测: secondary structure prediction次级结构改变,二级结构改变: secondary structural changerna二级结构预测: rna secondary structure prediction蛋白质的二级结构: protein secondary structure蛋白质二级结构: protein secondary structure; secondary protein structure; secondary structure of protein蛋白质二级结构预测: protein secondary structure prediction蛋白质分析中的二级结构: secondary structure in protein analysis二级结果: second level outcome一级结构;初级结构: primary structure超级结构: hyperstructure; super organization; super structure次级结构: secondary structure带分级结构: tape hierarchy等级结构: a hierarchical structure; hierarchical organization; hierarchicalorganization多级结构: multi level hierarchy; multi level structure; multilevel structure多级结构法: multilevel hierarchical approach分级结构: hiberarchy; hierarchical structure; hierarchy configuration分级结构法: hierarchical level approach高级结构: high level structure; higher structure; higher-order structure阶级结构: class structure进级结构: stustructure龄级结构: age class structure