1·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。
2·It is the key to ensure that PDC bit has choiceness of the work performance to reasonably place cutting.
合理的布齿是保证PD C钻头有优良工作性能的关键。
3·During the burning exhaust gas disposal unit, this kind of steel also has choiceness anti-corrosions effect for vitriol dew point corrosion resulted from low temperature exhaust gas.
在燃烧的废气处理设施中，这种钢对低温废气引起的盐酸露点腐蚀也有优良的防腐效果。
4·This study showed that in vitro systems establish, transformed systems establish, the choiceness hairy root lines select and the optimal culture condition of hairy roots systems establish.
主要从以下几个方面进行研究：离体培养体系的建立、遗传转化体系的建立、优良毛状根系的筛选、毛状根最佳培养条件的建立。
5·The paper reported the experiment results of the cross between the old tree and the choiceness clone in Chinese fir.
报道老杉木和杉木优良无性系杂交试验的结果。
1·Widely used in all kinds of rough picking of pulp, choiceness and paper machine screen, belongs to drain screen.
广泛适应于各种纸浆的粗选、精选及纸机前浆料的筛选，属于外流筛。
2·Also that is the ideal choiceness equipment for renewable newsprint and other waste paper pulping, chemical pulping.
也是再生新闻纸及其他废纸制浆、化学制浆理想的精选设备。