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The moon also triggers the spawning of dog and cubera snappers.

月亮也激发了狗啮鱼和古布拉金线鱼的繁殖。

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Viviparous propagation of plants is divided into seed viviparity and vegetative organ viviparity.

植物胎生繁殖的方式有种子胎生和营养体胎生2种类型。

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Without this, you are reducing your chances of concentrating the genes of the linebred ancestor.

没有这种选,你就正在降低强调在血系内繁殖中祖先基的机会。

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When you outcross, look for a male from a line of distinct type.

当你在进行异系繁殖的时候,请选与本犬型截然不同的犬。

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The topophysis on asexual reproduction of Ginkgo biloba L.was studied.

对银杏无性繁殖的位置效应进行了研究。

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The biology class studied the generation of fruit flies.

生物班的学生研究了果蝇的繁殖。

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A linebreeding may produce a puppy with magnificent qualities, but if those qualities are not present in any of the ancestors the pup has been linebred on, it may not breed true.

血系内繁殖可以生出质超群的小狗~~但是如果这些质并没有在血系内繁殖的小狗任何祖先身上呈现~~可能就是不准确的繁殖。

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Individuals crossing exclusively within the same population produce more progeny than those crossing in both directions and thereby use up some of their gametes for the production of inviable hybrids.

完全在同种群内进行杂交的个体比以两个方向进行杂交的个体繁殖后代要,为了产生无生机的杂种,就要消耗掉些配子。

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The feat silkworm room environment condition, can strengthen the silkworm son corporeity, repress the pathogeny breeding indoor,lower the outbreak rate, and raise the yield of the cocoon.

适宜的蚕室环境条件,可增强蚕儿体质,抑制其小环境内病原物的繁殖,降低发病率,提高茧的产量。

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Adaptedness is the state of being adapted: the degree to which an organism is able to live and reproduce in a given set of habitats.

业已适应是指正在适应的状态,即在组给定的栖息地上,有机体达到能够生存和繁殖时的适应程度。

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The water eutrophication is caused by the incessant accumulation of nitrogen and phosphorus in water and excessive propagation of a few of algal and hydrobios.

摘要水体中氮磷营养物质不断积累,部分藻类及水生生物的过度繁殖,导致了水体的富营养化。

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Using the structure model of hyphomycetoma growth,a time-segment parameter adjustment approach was proposed to adapt to the change of parameters throughout the fermentation process.

通过灵敏度分析得到对状态变量影响较大的参数,采用经繁殖操作改进的粒子群算法对参数进行寻优修正。

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"This experiment has for the first time removed this problem by making mutant yeast that sporulate when starved, but remain asexual," Goddard said.

酵母是种单细胞生物,它的繁殖方式有无性繁殖和有性繁殖两种。

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(2) all of biological characters, such as cormel's fresh weight, size, height, root length, roughness and root quantities, presented 1% significant difference.

(2)不同生长发育期无性繁殖的子球鲜质量、最大直径、子球高度、根系长度、根基粗度及根系数量等生物学性状均呈现1%水平极显著差异。

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In agamous propagation aspect which is rarely studied, technique is given and at last prospects of Kerria lacca host plants are viewed.

在研究相对较少的寄主植物无性繁殖方面提出研究的思路和对策;最后展望了寄主植物今后的研究发展方向.

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"We've become completely and utterly desensitise to the fact that breeding these deformed, disabled, disease-prone animals is either shocking or abnormal."

繁殖这些变形的、残疾的和容易患有疾病的动物是件可怕而反常的事情,而我们对这现实已经完全彻底地麻木了”。

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If the wastewater concentration was too high, it would stimulate fungus, aminate bacteria, denitrifying bacteria and some anaerobic bacteria to propagate.

污水浓度过大,会刺激土壤中真菌、氨化细菌、反硝化细菌及些厌气性菌的繁殖。

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The company has already raised captive-bred yellowtail kingfish (Seriola lalandi) and mulloway (Argyrosomus hololepidotus), which are now in significant commercial production.

该公司已经成功饲养出圈养繁殖的黄尾鰤及腋斑白姑鱼,这两种鱼目前已成为重要商。

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Nosemosis is a quarantine disease of honeybee, which greatly hinders c olony development and reduces the yield of honeybee products.

蜂微孢子虫病是蜜蜂的检疫性病害,该病严重阻碍了蜂群的生产繁殖。

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Most plants propagate by seeds.

大数植物都是通过种子繁殖的。

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剑桥雅思听力全真试题 9

And there was a clear pattern here - they proliferate where there is suitable water.

这里有一个清晰模式,它们适合水域繁殖。

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BBC 听力 2014年7月合集

The experiment into the effect of weightlessness on reptiles' sexual reproduction is still continuing.

研究失重状态对壁虎性繁殖能力影响实验仍继续。

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当月 CNN 10 学生英语 2021年2月合集

They do however outnumber the human population and they multiply really fast.

但是它们数量确实超过了人类,而且它们繁殖速度非常快。

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历年六级听力真题精听

The Pacific Whale Foundation on the west coast expressed the concern that the scooters are frightening away an endangered species of whale that migrates to Hawaii for breeding.

西岸太平洋鲸鱼基金会担心摩托车会吓走来夏威夷繁殖濒临灭绝鲸鱼物种。

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BBC 听力 2015年5月合集

Genes exist only to maximize their chances of survival and reproduction.

基因存只是为了将其存活和繁殖几率实现最大化。

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生活大爆炸 第10季

For the next 36 hours you're as fertile as a manurecovered wheat field.

接下来36个小时你繁殖力将会和施了肥麦田一样强。

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VOA Special 2019年2月合集

She told the Honolulu Advertiser newspaper, Wisdom is rewriting history about our understanding of survivorship, how long birds live, and how often they breed.

她告诉《火奴鲁鲁广告人报》," 智慧覆我们对生存、鸟类寿命和繁殖率认知。"

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经济学人-文艺

Hamilton even tackled the thorny question of why sex exists when asexual creatures can reproduce so much faster than those that mate.

Hamilton甚至研究过无性繁殖比有性繁殖繁殖得更快情况下,为什么还存性棘手问题。

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经济学人(汇总)

It means that a successful mutated line of rotifers will not be diluted by the genetic mixing caused by sexual congress.

这意味着一个成功轮虫突变系不会被有性繁殖引起基因混合所稀释。

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BBC 听力 2013年5月合集

Dolly the sheep was the first cloned mammal, but scientists have struggled to reproduce even the early steps in people.

多利羊是首个科隆哺乳动物,但科学家一直努力再造人类繁殖早期阶段。

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历年四级听力真题精听

Ducks are birds that feed and breed in areas where there is a lot of water, but their habitats have been shrinking in recent decades because of the droughts.

鸭子是有大量水地方觅食和繁殖禽类,但由于干旱,它们栖息地最近几十年里一直缩小。

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科学世界

Higher temperatures are also boosting their reproduction cycle.

更高气温也加快它们繁殖周期。

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剑桥雅思听力全真试题 10(大陆版)

All these influences have a negative impact on the spirit bears' very existence, which is made all the more fragile by the fact that reproduction among these bears has always been disappointingIy low.

所有这些影响对白灵熊生存都产生了负面作用,而这些熊繁殖率一直都比较低这一事实更是使得它们愈加脆弱。

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当月 CNN 10 学生英语 2021年5月合集

The process starts on land in a hatchery, in a controlled environment where you can really accelerate the propagation of the kelp seed.

这个过程从陆地上培养皿开始,一个受控环境中,你可以加速带种子繁殖。

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CNN 10 学生英语 2023年4月合集

There, specialists use a technique called micropropagation to grow them into saplings.

那里,专家们使用一种叫作微繁殖技术,将这些枝条培育成树苗。

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CNN 10 学生英语 2022年9月合集

So, the only breeding populations, the seed stock, are in zoos.

所以,唯一繁殖种群,种子储备,动物园里。

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每日英语听力 | 双语精读 2021年10月合集

It's a complicated process isolating individual strains that thrive on the right kind of filth.

将合适污秽中繁殖个体菌株隔离是一个复杂过程。

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剑桥雅思听力全真试题 6

So we must assume that from the beginnings of Neolithic farming the number of breeding sheep would have considerably exceeded three hundred, and the national cattle herd must have been of a similar size.

所以我们必须假定新石器时代农业开端繁殖种羊数量上超过300头,而牛群数量也是一致。

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BBC Ideas 精选(双语)

Endangered animals have a chance and space to multiply again.

濒危动物有了再次繁殖机会和空间。

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Wild China 纪录片

In late spring, the chilly lake waters are a magnet for breeding birds.

春末寒冷湖水,吸引了大批来此繁殖鸟类。

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