查询词典 parent population

Compared to japonica type parent, indica type parent (Taichung-Sen 10) contributed more genetic materials in the chromosomes 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, and 12, to the RIL population, but less in the chromosome 7. The averaged homozygosity (94.6％) was deviated from the expected ratio 96.9％.

十二对染色体之平均同结合与异结合比例分别为94.6％及5.4％，偏离F6世代同结合基因型之比例理论值(96.9％)，而分别在第六对染色体上有最大之同结合比例(98％)，第二对染色体有最小之同结合比例(90％)。

Johannsen experimented with the Princess bean and found that if the self-fertillzing parent plants were from a mixed population, then selection did indeed work. He described the offspring of single parent as a ' pure line ' and stated that they were genetically identical. In 1905 he coined the terms ' phenotype ' to describe the outward appearance of an individual and ' genotype ' to describe the genetic makeup of an individual.

约翰逊用菜豆做实验，结果发现：如果自体受精的亲本植株来自一个混合群体，那么选择确实是有效的，而被称为"纯系"的单亲后代则表明它们在遗传上是一致的。1905年他首次采用"表现型"来描述某一个体的外观形状，用"基因型"来描述某一个体的遗传组成。

To the establishment of prior distribution in RGTE, considering that reliability growth test data belongs to a dynamic parent population, and based on the stage reliability growth test data, the dynamic modeling methods for prior distribution establishment are studied.

在可靠性增长试验评定先验分布的确定方面，针对可靠性增长试验数据的动态统计母体特点，基于阶段可靠性增长试验数据，对可靠性增长试验评定中先验分布确定的动态建模方法进行研究。

And use the award-winning teachers of teaching excellence awards between 2003 and 2007 held by Ministry of Education as parent population, and were implemented by 2-stage strata and cluster sampling survey with a total of 580 questionnaires distributed, and 353 valid questionnaires with a rate of return of 60.8%.

并以92至96学年度教育部所举办之教学卓越奖得奖教师为母群体，实施两阶段分层比例丛集抽样调查，共发放580份问卷，回收有效问卷共353份，有效回收率为60.8%。

Group contrast test ; sample variance ; parent population mean value ; fiducial interval ; freedom

成组对比试验；子样方差；母体平均值；置信区阀；自由度

Two reformative operations are introduced, including the parent population involving selection and optimal individual maintaining. The design of fitness function and the scheme of encoding and decoding of GA are discussed significantly.

最后，针对系统测试存在大量测试数据难以获取，系统长期连续运行性能难以评价的困难，提出了一个基于仿真的信息系统性能测试框架，利用该框架对集装箱堆场大门作业计划系统进行性能测试。

There are some characteristics for reliability growth test evaluation of liquid rocket engine, such as its field test data is small sample, there are multi-kind stresses act on the system during accelerated life test, its life test data belongs to a dynamic parent population.

液体火箭发动机可靠性增长试验的特点有：系统现场试验为小子样、加速寿命试验中存在多种应力综合作用、可靠性增长试验数据属于动态统计母体。

Along with the variety of altitude, the mountainous climate、vegetation、biology、parent population etc also have regular varieties, So the mountain soils represent distinct vertical variations on the vertical zone, and that engender many type of soils.

垂直地带是山地所特有的自然现象，随着海拔高度的变化，山地气候、植被、生物、成土母质等自然要素也发生着规律性变化，因此，山地土壤在垂直带上表现出明显的分异规律，形成多种土壤类型。

P. denasta harbored the three chlorotypes, two of which were characteristic of its two parental species respectively. The third chlorotype was extensively distributed in seven of the ten P. densata populations analyzed, and might represent a mutation type or have been derived from an extinct parent. Population differentiation of P.

TT和GC分别是油松和云南松种特异性叶绿体单倍型，而在高山松群体里则三种单倍型均有分布，而且TC单倍型广泛地分布在7个杂种群体中，该单倍型很可能来源于点突变或第三个已灭绝的亲本。rbcL基因检测到的高山松群体分化系数很高（G〓=0.533）。

Genetic polymorphism and aggregation of seven sheep populations, including three breeding sheep populations (breeding F1, F2 and Bamei mutton sheep), three introduced mutton sheep breeds (Texel, Dorset and German Merino sheep) and one local female parent population, were assessed using 10 microsatellite markers.

方法］利用10个微卫星标记对3个选育绵羊群体（选育级进1代、级进2代、巴美肉羊），3个引进肉羊品种（德克塞尔、无角道塞特、德国美利奴）和1个当地母本群体进行微卫星标记鉴定，分析这7个绵羊群体的多态性和遗传聚集性。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失