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Forest management system which provides for the removal of all merchantable trees down to a specific diameter at breast height in a single operation, followed by a poison - girdling of remaining large noncommercial stems.

指一种森林管理制度,其做法是一次性去除一切可销售的树木直至只剩下具有一定直径齐胸高的树木,接着使用毒化方法对剩下的无商业价值的大树进行环状剥皮加以剔除。

I shook the nations with the sound of his fall, when I brought him down to hell with them that descend into the pit: and all the trees of pleasure, the choice and best in Libanus, all that were moistened with waters, were comforted in the lowest parts of the earth.

当我使它下到阴府与已在深渊的人在一起时,也使列国因它下坠之声而战栗;那时「伊甸」中的各种树木,黎巴嫩一切有水滋润的华丽而高大的树木,在阴间都感到安慰。

They use the carbon thus sequestered to make molecules like cellulose, and thus more tree.

树木将大气中的碳元素固定成为像纤维素一类的碳分子化合物,并孕育更多的树木。

Based on the information made available to me, the Forestry Bureau staff had cut the tree into pieces and removed of them, which was in village boundaries.

根据我所得到的资讯,林务局的同仁亦在司马库斯部落的范围之内切割树木成碎块并把这些树木带走。

In l664 the great English diarist,John Evelyn,published,with the approval of the Royal Society of London,a book Sylva or a Discourse of Forest Trees in which one sees,perhaps for the first time,a realization that trees,then so important in the construction of ships,were indeed becoming sadly depleted and that something urgently needed to be done by way of deliberate planting to ensure enough for the future.

年,英国伟大的日记作家J·Evelyn,经伦敦皇家学会批准出版了一部森林志,即《林木论》。在这本著作中,人们可以说是第一次了解到一个现实:当时,在造船业中如此重要的树木的确正在悲惨地遭到浩劫;必须采取紧急措施,通过认真植树以便确保未来有足够的树木。

In l664 the great English diarist,John Evelyn,published,with the approval of the Royal Society of London,a book Sylva or a Discourse of Forest Trees in which one sees,perhaps for the first time,a realization that trees,then so important in the construction of ships,were indeed becoming sadly

年,英国伟大的日记作家J·Evelyn,经伦敦皇家学会批准出版了一部森林志,即《林木论》。在这本著作中,人们可以说是第一次了解到一个现实:当时,在造船业中如此重要的树木的确正在悲惨地遭到浩劫;必须采取紧急措施,通过认真植树以便确保未来有足够的树木。

In l664 the great English diarist,John Evelyn,published,with the a roval of the Royal Society of London,a book Sylva or a Discourse of Forest Trees in which one sees,perha for the first time,a realization that trees,then so important in the co truction of shi ,were indeed becoming sadly depleted and that something urgently needed to be done by way of deliberate planting to e ure enough for the future.

年,英国伟大的日记作家J·Evelyn,经伦敦皇家学会批准出版了一部森林志,即《林木论》。在这本著作中,人们可以说是第一次了解到一个现实:当时,在造船业中如此重要的树木的确正在悲惨地遭到浩劫;必须采取紧急措施,通过认真植树以便确保未来有足够的树木。

The study of tree ring data indicates that the width and the content of trace elements of tree ring variated obviously in the city.

通过运用树木年轮资料对环境要素进行的研究表明,在城市污染条件下,树木年轮宽度和微量元素含量均发生了明显的变异;植物叶片、树皮中某些元素或化合物的含量水平可指示大气污染程度。

In terms of fractal characteristics for tree branches, growth for different branching types was simulated with L-studio software based on the basic concepts of L-system and turtle interpretation. Graphics of tree branches become more colorful and vivid by introducing randomicity factors from L-system.

基于树木分枝的分形特征,在简要介绍林氏系统语言基本概念和海龟解释基础上,应用L-studio软件编写林氏系统语言程序对不同枝条的分枝类型进行生长模拟,并通过引入随机性因子使得应用林氏系统生成的树木分枝图形更加丰富多彩和形象逼真。

In addition, trees should give full play to the function of regulating micro-climate, tall trees can be created on a small and pleasant climate and environment.

此外,树木要充分发挥功能的调节微气候,高大的树木可以建立一个小型和宜人的气候和环境。

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This one mode pays close attention to network credence foundation of the businessman very much.

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