To establish the stable theory bases of choiceness gene induced, expression and breeding of high yield and high ephedrine content through series research the molecular biology.
进行系统的分子生物学研究，为麻黄的优良基因导入、表达及高产与高含碱量新种质的选育奠定坚实的理论基础。
The molecular weight also decreased with reaction time but the yield of water-soluble chitosan increased with reaction time.
随着反应时间的延长，水溶性壳聚糖的分子质量随之降低，产率却随之增加。
Probably the most exciting prospects for gellan gum's molecular modification and yield promotion will be found in gene engineering.
基因工程是结冷胶分子改造和产量增加最具前景的方法。
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