词汇	principle of contrast
释义	principle of contrast 对比原理
随便看	variation from standard method variation function variation functions variation fuzzy rough sets VariationGenetics variation genetics variation geometry criterion Variation-image of co-conformation variation in variation in abilities variation in altitude variation in antigen variation in averages variationin brightness variation in capacities variation in colour variation in cross-section size variation in cuhivars variation in daily rate variation in diameter variation indicator variation in discharge variation induction variation in elytral color variation in fish stock