分级
词语： 分级
解释： gradation;grading;stepping
词典： 能源专业汉英词典
分级 相关解释
分级 grading;grading and packaging facilities;stepping
分级 grading;ranking;sieving
分级 grade;gradation;grading
分级 classification
分级 classification;graduation
分级 classification;fractionation
分级 grading;hierarchic;hierarchical;hierarchy;layer level;articulated;outline;staging
分级 class;classification;classifying;fractionate;fractionation;grading;graduation;settle