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Owing to the exploitation of phosphorite and the unilateral circulation of phosphorus in nature, phosphorus resource is increasingly exhausted.

自然界磷的迁移转化磷是人类和动植物的各种生命活动必需的元素,它在细胞的生命活动中起着关键作用。

Practically all photobiological behavior of plants and animals-photosynthesis, phototropism, phototaxis,photoperiodism, and vision-utilize this range of radiation.

事实上,所有动植物的光生物行为——光合作用、向光性、趋光性、光周期和视觉——都利用这一辐射范围的能量。

Type genus of the Phylloxeridae: plant lice 同义词:genus Phylloxera phylogenetic a.

系统发生的,动植物种类史的英英解释:形容词phylogenetic: 1。

One of the thin, platelike structures on the underside of the cap of a mushroom or similar fungus.

膜薄而柔软的组织层,覆盖在表面或分割连接各种区域、结构或动植物器官

Relics of the flora and fauna of the Pleistocene age have been preserved in fossil form.

更新时期的动植物遗迹以化石的形式保存了下来。

But the former study was only the identification analysis of the existing of the major gene and polygene, the identification of genetic model and the analysis of genetic effect in major gene and polygene mixed inheritance model of quantitative trait from different animal-plant.

但以往的研究只是对不同动植物主基因-多基因混合遗传的数量性状的主基因和多基因存在的鉴别分析,以及遗传模型识别和各种遗传效应的分析。

A polyploidy is an organism with more than two sets of chromosomes, the polyploidspecies spread abroad.

多倍化是自然界普遍存在的现象,自然界及人工的多倍体动植物也普遍存在。

Numerous various natural things and animals and plants imago came into ancient poems which enabled the poems to appear a characteristic of virescence and vital force and unfolded a lot of prismy ecological pictures.

大量千姿百态的自然风物、动植物意象入诗使古代诗歌呈现出"绿化"、生机化的特色,为读者展示出一幅幅五光十色的生态画卷。

She was the goddess of love in that wide sense of the word which in early times embraced also the love of animals, and the love which was thought to be the cause of productiveness throughout nature.

她是古希腊神话中爱和美的女神。从广义上讲,她不仅掌管人类的爱情、婚姻和生育,而且也负责一切动植物的繁衍生长。

Therefore, APHIS determined that it was unnecessary to prohibit importations from western Panama at this time.

因此,美国动植物检疫局认定,在这个时候禁止进口来自巴拿马西部瓜类产品是没有必要的。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力