1) positive selective breeding
正向选育
1.
This paper reports the completely different results of positive selective breeding and negative selective breeding of blunt snout bream , Megalobrama amblycephala in 14 years.
报道 1 986 - 1 999年团头鲂正向选育和逆向选育的两种截然不同的效果。
2) positive selection
正向选择
1.
First,the positive selection algorithm inspired by immune system is discussed.
对基于免疫机制的正向选择算法进行了研究,利用具有时频局部化特性的小波包分解得到表征结构特征的小波包能量谱,通过正向选择算法检测小波包能量谱的异常来辨识结构状况。
2.
The comparison among multi HrpA sequences showed that most of the HrpA N terminus were subjected to positive selection and the C terminus were subjected to purifying selection.
通过与看家基因及毒力岛上的致病性相关的重要基因HrpN的比较、选择压分析、多序列比较,发现HrpA基因处于较强的选择压作用下,且HrpA蛋白N端主要受正向选择,C端主要受净化选择。
3) selecting due
正向选取
1.
This paper has analyzed a series rule of selecting due on the natural reference coordinate system, and shown forte and lack.
本文分析了近年来提出的自然坐标系正向选取的一系列规则的利弊。
4) screening
[英]['skri:nɪŋ] [美]['skrinɪŋ]
定向选育
1.
Directional screening of high producing strain of avermectin B1a component;
阿维菌素B1a组分高产菌株的定向选育
5) directive breeding
定向选育
1.
Aspergillus terreus A9002 as an original strain producing itaconic acid was mutated by UV and NTG, then by directive breeding.
以衣康酸生产菌土曲霉A90 0 2为出发菌株 ,经紫外线及亚硝基胍复合诱变后再行定向选育 ,即在以衣康酸为唯一碳源的培养基中富集不能同化衣康酸的菌种 ,并将它们涂布在含乌头酸酶抑制剂 (单氟醋酸 )的高糖、高衣康酸平板培养基上 ,最后从中而筛选出一支衣康酸氧化酶弱 ,乌头酸酶活强 ,并耐自身代谢产物的高产突变株A90 0 3。
6) negative selective breeding
逆向选育
1.
This paper reports the completely different results of positive selective breeding and negative selective breeding of blunt snout bream , Megalobrama amblycephala in 14 years.
报道 1 986 - 1 999年团头鲂正向选育和逆向选育的两种截然不同的效果。
补充资料：Kinematicchain(正向链接运动)
kinematic chain (正向链接运动)
kinematic chain正向链接运动是定义一个单一层级分支，使其分支下的子物体沿父物体的链接点运动。
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