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Classification, varieties, simple synthesis process and application of cationic softeners were introduced.
介绍了阳离子柔软剂的分类、品种、简单合成方法及应用。
This paper summarized classification, functions, varieties of colorant and factors affecting coloration of salmon and bulltrout.
本文阐述了着色剂的分类及作用、着色剂种类的选择及影响鲑鳟鱼着色效果的因素。
The researches about the classification and identification of their species and varieties have provided an early, subservient and selective index for breeding work.
其种间或品种间的分类鉴定和亲缘关系的研究为育种工作提供了一个早期的、辅助的、选择性的指标。
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