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与 树木的 相关的网络例句 [注:此内容来源于网络,仅供参考]

Although each of the 11 species of the bark beetle had its own spatial niche and overlogs niche, they could attain competitive equilibrium and coexistance according to their requirment for different nutrition and space, the interference of population density and the different time interval attacking the host tree.

虽然,这11种小蠹虫具有各自不同的生态位宽度,且存在不同程度的生态位重叠,但各小蠹虫可依据其对寄主树木营养和空间需求的不同、种群密度的相互制约,以及入侵寄主树木时序的差异达到竞争的平衡和共存。

In a place called the Mariposa Grove, visitors can see some of the largest, tallest and oldest living things on Earth. These are the giant Sequoia Trees. One of these trees is called Grizzly Giant. It is more than one thousand eight hundred years old. One tree is almost ninety meters tall.

在一个叫玛莉波莎丛林的地方,游客可以看到我们地球上最大的、最古老的、最高的树木,这些树木是巨大的美洲杉,其中有一棵美洲杉叫Grizzly Giant,它已经有1800多年的年龄,有一棵树高达90米,而另一棵树环抱长达十米。

My Hedge was begun and carry'd on, I believe, about fifty Yards, when this Thought occurr'd to me, so I presently stopt short, and for the first beginning I resolv'd to enclose a Piece of about 150 Yards in length, and 100 Yards in breadth, which as it would maintain as many as I should have in any reasonable time, so as my Flock encreased, I could add more Ground to my Enclosure.

这是一大片平坦的草原,也就是西部殖民者所说的热带或亚热带那种树木稀疏的草原。草原上有两三条小溪,水流清澈,小溪尽头有不少树木。但凡是有圈地经验的人,一定会认为我这种做法缺少计算,如果我把自己原来的想法告诉他们,他们也一定会笑话我。这不仅因为我的圈地规模过大,如果要把篱笆或木栅栏修筑起来,至少有两英里长!其实,篱笆长短还在其次,即使十英里长我也有工夫将它完成,主要还是圈地范围过大所带来的后果。当时我没有考虑到,山羊在这么宽广的范围内,一定会到处乱跑,就像没有围起来一样。如果要捕捉它们,就根本无法抓到。

Nothing is more wonderful or moresingular than those enormous specimens of the order of the myrtaceae, withtheir leaves placed vertically and not horizontally, so that an edge andnot a surface looks upwards, the effect being that the sun's rays penetratemore freely among the trees.

这种高大的桃金娘科树木真是新奇少有,它们的叶子是垂直的而不是水平的,也就是说,向上长着的是叶边,而不是叶面,因此,阳光很容易透过树木射下来。

The feature adaptation of P.rigidula and the evolution of the parasitic shrubs had been discussed. Some of the characteristics based on the superparasitic chains elucidate the evolutionary processi...

讨论认为,重寄生链上的一些渐变特征展现林木上寄生灌木具有 2个演化阶段,即以自养树木为寄主的半寄生灌木演化阶段,和以树木上半寄生灌木为直接寄主的重寄生灌木演化阶段;重寄生属植物特殊的生活习性和形态结构特征,是与其在寄主桑寄生科半寄生灌木上生活的特殊环境相适应的,是与其寄主、传播花粉蚂蚁类昆虫和传播种子鸟类协同演化的结果。

Most temperate cerambycids inhabit recently dead or dying wood, but the ALB commonly infests living, healthy, and weakened trees.

大多数温带的天牛栖息于刚死亡或正在死亡的树木上,但光肩星天牛却侵染活的、健康的和衰弱的树木。

The effects are made worse by the fact that we are cutting down trees at an alarming rate and not reforesting many used up areas, leading to fewer trees to absorb and process the carbon dioxide in the air.

效果变得更加严重的事实,即我们是削减的树木在以惊人的速度,而不是reforesting许多用罄地区,导致更少的树木,以吸收和过程中的二氧化碳在空气中。

Article 21 People's governments at different levels shall reinforce their leadership in fire prevention of the ecological public welfare forest, implement the system of administrative leaders' responsibility for forest fire prevention, and ensure the supply of sufficient funds for forest fire prevention and suppression. The forestry administrative department of the people's government at or above county level shall set up publicity boards for forest fire prevention in the forest area and peripheral area hereof, construct fire-prevention forest belt or forest fire obstruction passage and establish fire suppression force.

第二十八条违反本办法第二十四条第一款规定,在生态公益林区域内进行采种、采脂等经营活动,致使森林、林木受到毁坏的,依照《中华人民共和国森林法》第四十四条的规定,赔偿损失;由县级以上人民政府林业主管部门责令停止违法行为,补种毁坏株数1倍以上3倍以下的树木,可处毁坏林木价值1倍以上5倍以下的罚款;拒不补种树木或者补种不符合国家有关规定的,由林业主管部门代为补种,所需费用由违法者支付。

The tree diameter at breast height and crown length can be used to predict the size and location of mean knot diameter in a whorl.A linear mixed model expressed as function of tree and knot variables such as HK、RKD、KD and DBH was used to predict sound knot length,and a log-linear mixed model using RKD and DBH as variables was used to describe loose knot length.4.A knot has four development phases:from the birth of a branch to its growth cessation,from growth cessation to death,form death to occlusion and form birth to occlusion.The numbers of annual rings in four periods,as well as the stem width of respective zones were used as dependent variables predicted by models expressed as function of tree variables and knot attributes.5.Using the data of diameter out side bark of 15 relative heights along the step,the best taper equation for Larix olgensis was established.

节子平均直径可以用以胸径,冠幅和节子高度为参数的舒马克生长方程来预测,用树木胸径和冠长可对每轮节子平均直径的最大值及位置进行预测;健全节长度可用以节子着生高度、相对直径、节子直径以及树木胸径为参数的线性混合模型来预测,疏松节长度采用节子相对直径和胸径为自变量的可转化为线性模型的自然对数模型来预测;4、节子有四个生长发育时期:从枝条形成到生长停止BC从生长停止到死亡(CD从死亡到包藏DO从形成到包藏

Meanwhile, tree species in the upper canopy layer were more stable than that in the lower layers of the fragmented forest.

与连续森林比较,片断热带雨林的植物物种丰富度和物种多样性指数都比较低,而且有相当低比例的大高位芽、中高位芽和附生等生活型植物,而藤本、小高位芽和矮高位芽等生活型植物的比例则较高;泛热带、热带亚洲至热带非洲的区系成分比例较高,而当地成分则减少;群落的上层树木比下层树木更加稳定。

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

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三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。