断面积模型是全林模型系统中最重要的模型。
The basal area growth model is the most important one in the integrated stand growth model.
该文从供给方面,运用赫克谢尔-俄林模型,探讨了中俄木材双边贸易合作的资源禀赋要素;
From the supply aspect, this paper has discussed the natural resource element in timber trade bilateral cooperation between China and Russia by E.
本文将网络外部性同顾客选择与产品差异化理论结合,通过构建扩展的豪泰林模型研究了网络外部性对市场绩效与企业竞争策略的影响。
The paper analyzes an extended Hotelling model with network externalities, and carries out the research on the impacts that network externalities put on competition tactics of companies.
提出这一设想的是纽约西奈山医学院的细胞生物学家伦纳德·奥恩·斯坦和美国宇航局气候模型家伊戈尔·艾列诺夫和大卫·林德。
The scheme has been thought up by Leonard Ornstein, a cell biologist at the Mount Sinai School of Medicine in New York, together with Igor Aleinov and David Rind, climate modellers at Nasa.
克林齐得到了比登登糕饼模具的石膏模型,并对其做了全面的研究。
Mr Clich had obtained plaster casts of the moulds for the Biddenden Cakes and studied them thoroughly.
星城博物馆有和平号空间站的模型和加加林的太空舱,人们第一个想参观地方就是太空厕所。
In a Star City museum that includes replicas of the MIR space station and Gagarin's capsule, the first thing everyone wants to see is the space toilet.
不幸的是,他们不再把黄色的刺刀模型迈克尔·柯林斯·阿波罗11号期间使用。
Unfortunately, they no longer make the yellow bayonet model used by Michael Collins during the Apollo 11.
结果表明模型能较好地模拟暖温带落叶阔叶林的长期动态变化特征。
Results showed that the model simulation of forest species composition, biomass and production matched well with observed data.
通过本文的研究既检验了林窗动态模型又印证了林分密度效应理论。
This not only tested the forest dynamics model but also verified the theory of stand density effect.
并以林先哲所建立的胶原分子的孤子激发模型为例,描述了经络能量转移的非线性特性。
The non-linear characteristics of the energy transferring along meridian is figured out through the model of soliton excitation in collagen molecules.
在林业生产实践中,用灰色系统模型预测人工林材积生长率有其适用价值。
It is worth while to apply the gray system model to predict the forest growth in practice.
方法:以利巴韦林作为模型药物,以17.7%的泊洛沙姆407作为凝胶基质制备具有适宜相转变温度的局部应用的体温敏感凝胶。
METHODS Ribavirin was selected as a model drug and the 17.7% poloxamer 407 was selected as the base meteral to develop a kind of in situ thermosensitive gels for ophthalmic use.
利用已建立的阶跃函数模型可以有效地预测不同桉树品系人工林树冠生长动态,为桉树人工林的合理经营提供科学依据。
With these step function models, the crown diameter growth of Eucalyptus clones can be predicted, and it also provided scientific basis for the reasonable management of Eucalyptus plantations.
这些模型可用于估计一定立地条件下的楠木人工林的生产量。
The models can be used to estimate the biomass of this kind of stand in certain circumstances.
研究结果表明,该模型是符合福建省西北部当地的地租水平的,可方便、快捷地对用材林林地资产进行评定估。
The research showed that, this model is conformable to the local woodland rent level in northwestern of Fujian province, which can be used directly in assessment of timber woodland property.
通过对试验数据的回归分析,建立了林灌地和封禁草灌地在短历时暴雨条件下的土壤水分入渗经验模型。
By the regression analysis of date observed from this experiment, a model of infiltration for forest-shrub land and grass-shrub land was constructed.
论述了水源涵养林的生态效益及其计量方法和模型;
The estimating methods and models, the benefit compensation principles were discussed also.
在定级的基础上,提出了两种用材林林地估价方法,即基准地价修正法和地价模型法。
On the basis of grading, two evaluating methods of timber woodland are advanced, which are standard land-value modified method and land-value model method.
将西方经济学原理与中国国情、林情结合,建立了森林资源分布非均衡性评价的一般模型。
Combining economics and Chinese national status and forest condition, this paper is to set up the appraisement model of forest resources allocation disequilibrium.
通过构建逻辑斯蒂回归模型,分析影响私有林合作经营意愿的因素。
The text analyzes the influencing factors of private forest's cooperative management willingness, through constructing logistic regression model.
对直径生长转移概率矩阵模型进行了线性扩展,用以研究混交异龄林的树种组成问题。
A transfering probability matrix model of linearly generalized diameter growth was used to deal with the tree species composition problem of mixed unevenly aged forest.
本文对厚朴人工林的生长规律进行了系统研究,建立了其栽培群体的各种生长模型。
The growth patterns of Magnolia officinalis plantations were systematically studied. Various growth models of the cultivated populations were established.
通过对各项与林道网养护年限有关费用的系统分析,建立了合理养护年限的决策模型。
The paper developed the decision model for the optimum years of maintaining forest road network based on the analysis of all costs relative to the years.
本文基于热力学性质建立了分置式斯特林制冷机的物理模型,并将人工神经网络引入模型。
Based on the characteristics of thermodynamics, the physical model of split-Stirling crycooler was set up and artificial neural networks were imported into the model.
结果表明:该竞争指标对杉木人工林适用,所建立的单木生长模型符合精度要求,可用于预估林分生长。
Result shows, This competition index is suitable to Chinese fir man-made forest, and individual tree growth model accords with the demands of accuracy, it can be used to estimate growth of stands.
以中国东北长白山阔叶红松林为例,应用林窗模型NEWCOP探索了不同模拟样地面积对林窗模型输出结果的影响。
A case study on the effect of different plot area on forest gap model simulation was conducted with forest gap model NEWCOP in broad leaved Korean pine forests at Changbai Mt. of Northeastern China.
林崇德的思维结构模型,是其智力理论的核心。
The model of the thinking structure by Lin Chongde is the core of his theory of intelligence.
林崇德的思维结构模型,是其智力理论的核心。
The model of the thinking structure by Lin Chongde is the core of his theory of intelligence.
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