1) quantitative sieving
定量筛选
1.
Comparative analysis of quantitative sieving methods of quality evaluation indicators for rotating sprinklers
旋转式喷头质量评价指标定量筛选方法对比分析
2) directed screening
定向筛选
1.
The strain improvement ,directed screening and fermentation experiments in a little fermentor were studied , An anaerobic fermentation technology was obtained,which made the fermentation unit heightened significantly.
本文报道了利用菌种自然选育、定向筛选和小罐发酵等试验研究方法,总结出了利用费氏丙酸菌进行厌氧培养生物合成维生素B12的发酵工艺,使发酵单位有了很大提高,这对利用厌氧菌生产维生素B12具有一定的指导意义。
3) Screening and identification
筛选鉴定
4) Directional selection
定向筛选
1.
JIAYIN Poplar embryonic calli were treated with γ-radiation to induce the salt-tolerant mutants through tissue culture and directional selection.
本研究以"加引"组培苗茎段培养获得的胚性愈伤组织为辐射诱变材料,研究了用γ射线(60Co)辐射诱变并在含盐培养基上定向筛选耐盐变异体的方法。
2.
vasinfectum only in few years by directional selection in disease plot,dipping cotton seedling roots cultured in liquid with spore suspension inoculation method was used to study the pathologic changes and differentially expressed cDNAs between susceptible cotton varieties (Xinluzao 7 and Tianjiu 63) and their resistant descendants obtained by directional selection.
本文以这两个棉花品种和其经过病圃定向筛选3年、2年对枯萎病抗性有明显提高的材料为研究对象,运用液体培养棉苗孢子悬浮液浸根接种的方法,针对接种后抗、感材料的病理学变化和差异表达的基因进行了研究,旨在从病理学和分子生物学角度揭示感病棉花品种经过病圃加压定向筛选后抗性发生转化的机理。
5) directional screen
定向筛选
1.
The study of γ irradiation induced mutation(60 Co) and directional screen of resistant variants in medium were made with embryogenic callus obtained from stem culture of "Jiayin" tissue culture seedlings of Populus×euramericana as irradiation induced mutation material.
以欧美杨"加引"组培苗茎段培养获得的胚性愈伤组织为辐射诱变材料,进行了γ射线(60Co)辐射诱变、培养基上定向筛选抗病变异体的研究。
6) Isolation and identification
筛选鉴定
补充资料：定量
①测定物质所含各种成分的数量：～分析。②规定数量：～供应ㄧ定质～。③规定的数量：超出～。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条