查询词典 artificial breeding

Originally, the Barn Swallow nested primarily in caves, but gradually they converted to breeding under the eaves of buildings or inside artificial structures such as bridges and even deserted pipes.

最初，家燕主要筑巢于洞穴里，但是逐渐地，它们转变为在屋檐下或人造建筑物里，例如大桥，甚至在被废弃的管道里扎巢。

In the wild, in breeding, and in artificial life, we see the emergence of variation.

在野生环境中，在繁育过程中，以及在人工生命中，我们确实能见到多样性的增加或者出现。

CMS and utilization of fertility restorer system have made a breakthrough in conquering breeding bottleneck by artificial emasculation and unfolded a bright outlook for promoting commercial production of hybrid seed.

利用棉花细胞质雄性不育和育性恢复系统突破了传统人工去雄杂交育种的瓶颈，为棉花杂交种制种的商业化推广展现了光明的前景。

Populus is one of the most popular trees in artificial intensive forestry, to select fast growing clones with high WUE rapidly and efficiently is exigent desire of breeding researcher.

本文通过模拟自然干旱和土壤逐渐干旱两种方法对黑杨新品系间的WUE进行了比较，并对WUE差异的机理进行了初步研究，以期为林木育种实践提供可行的方法和理论依据。

During the 3 breeding cycle, we have research successfully on the laying eggs, fecundation, artificial incubation, artificial fostering nestlings , and the nestling growth in captivity.

终于在大鸨人工饲养条件下产卵、受精、人工孵化、人工育雏及雏鸟的生长发育等方面的研究上取得了成功，同时还对大鸨的骨骼解剖，羽毛微观结构观察及成分分析，生殖系统解剖、消化系统解剖及消化系统组织学疾病防治进行深入的研究。

This study provides the theroretical basis for rational drug application in controlling the disease during the artificial fingerling breeding of M. asiatticus.

结论］该研究为胭脂鱼人工苗种繁育过程中合理用药防治病害提供了理论依据。

In 1989 our specialists began piloting the very first ornamental marine fish hatchery in Europe to use recirculation and artificial environment technology; in 1994 they played a key role in developing Europe's first commercial Clownfish hatchery and following this, implemented developments for successful breeding programmes for Fire Shrimps and many other species.

我们的专家在1989年开始试点的第一装饰在欧洲海洋鱼类孵卵所使用再循环和人为环境的技术，于1994年，他们的发展发挥了欧洲第一个商业小丑鱼孵化场和下面这个关键的作用，实施消防虾成功繁殖计划发展和许多其他物种。

The haploid breeding of maize is a technology that using anther culture or gynogenesis to produce haploid, and then obtain stable new varieties through natural or artificial doubling.

玉米的单倍体育种，是利用花药培养或孤雌生殖产生单倍体后，进行人工或自然加倍，迅速获得稳定的新品种的育种方法。

The major way of all-female breeding is to combine artificial gynogenesis with sex reversal, in which the key technique is the identification between gynogenesis fish and hybrid individuals.

人工诱导雌核发育与性逆转相结合是全雌鲤鱼育种的主要途径，其中雌核发育鱼与杂交鱼的鉴别是该途径的关键技术。

Although we may call it artificial evolution, there is nothing about it that is more or less artificial than breeding dachshunds.

尽管我们会称其为人工进化，却与它是否比繁育腊肠犬需要更多或更少人工毫不相干。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。