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It is true that in natural repropagation of a cleared area, a superabundance of seedlings is often produced, and later thinned by competitive survival of the stronger individuals.

森林的空旷地上,树木的自然繁衍通常会生产无数的幼苗,而后由於较强个体的优势竞争而逐渐变疏,这是事实。

The isotopic ratio is incorporated as the tooth grows, leaving a record over time similar to tree rings.

同位素的比例随着牙齿的生长融入其中并随着时间的流逝留下记录,类似于树木的年轮)。

The results showed that the rhizosphere medicine could increase survival rate, height, DBH, relative turgidity of bark and tree capacitance and decrease morbidity and contagious index dramatically. Two kinds of application methods were adopted: one was called the soil-mixed method and another called the root-dipping method.

结果表明,根际微生态保健剂对造林成活率、树皮相对膨胀度、树体电容、树木的高生长和胸径生长具有明显的促进作用,对林木的发病率和感病指数有明显的降低作用。

Is it simply an ensorcelled walking tree – a wood wraith – or is it something more?

它是不是只是一个混乱的,会行走的大树,一种树木的幽灵,又或者是其他的什么东西?

On the base of study on arbuscular endomycorrhiza of Alnus of Changbai Mountain and nitrogen-fixing woods of Northeast of China, the paper attempted to reveal the DNA molecular polymorphism of the symbiotic arbuscular endomycorrhizal fungi for the effect that make better use of the fungi resource.

本项研究利用分子生物学技术和研究方法对中国吉林长白山地区非豆科固氮植物以及东北地区固氮树木的丛枝菌根真菌DNA分子多态性及其与宿主植物之间的相互关系等进行初步研究,旨在利用分子生态学理论和研究方法揭示丛枝菌根真菌多样性及其与宿主植物之间相互适应和协同进化的一般规律,为更好地保护和利用这一重要的微生物资源提供理论依据。

Disk 9 see joke : The annual ring account of the vast wisdom that arboreous annual ring is recording years to elapse is worn the footstep that the mankind grows .

9看笑话:树木的年轮记录著岁月流逝的苍茫;智慧的年轮记载著人类成长的脚步。

"Either of two species of easily tamed, oxlike antelope found in herd s on the plains or in lightly wooded areas of central and southern Africa."

偶蹄目牛科大角斑羚属2种容易驯化的牛形羚的统称,成群栖息在非洲中部和南部的开阔平原或有少量树木的地区。

"Either of two species of easily tame d, oxlike antelope found in herds on the plains or in lightly wooded areas of central and southern Africa."

偶蹄目牛科大角斑羚属2种容易驯化的牛形羚的统称,成群栖息在非洲中部和南部的开阔平原或有少量树木的地区。

"Either of two species of easily tamed, oxlike antelope found in herds on the plains or in lightly wooded areas of central and southern Africa."

偶蹄目牛科大角斑羚属2种容易驯化的牛形羚的统称,成群栖息在非洲中部和南部的开阔平原或有少量树木的地区。

Silicified wood say wood wood, because it we now wood of concept, and is like the stone, but it has the appearances of trees, the section has annual rings, like all other biological fossils, silicified wood fossil their try in the ancient legacy of the nature.

硅化木说木不是木,因为它已经不是我们现在概念上的木,而更象是石,然而它却有树木的外形,剖面有年轮,与其他所有的生物化石一样,硅化木化石其勉力所在便是不可再生,纯是大自然的远古遗产。

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推荐网络例句

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。