常見例句On the basis of their structural distinctions repetitions can be classified into two groups: variant repetitions and nonvariant repetitions. 根據(jù)結(jié)構(gòu)特點，重疊對語分成變異性重疊和非變異性重疊兩種。Keywords dimethyl carbonate;methanol;nonvariant boiling reagent;VLE;calculation; 碳酸二甲酯;甲醇;恒沸劑;汽液平衡;模擬計算;nonvariant system 不變系,不變系統(tǒng) 返回 nonvariant