自然法

In sphere approximate, GPS/Gravity-BVP is Neumann problem over exterior spherical domains. Then the natural boundary reduction, suggested by Feng and Yu, is applied to deal with the three dimensional problems. By expansion in spherical harmonics, the natural integral equations of harmonic problems over exterior spherical domains are obtained. Meanwhile, a numerical method for solving geodetic BVP is developed.

在球近似下将GPS-边值问题转化为Neumann外问题，用自然边界元法进行自然边界归化，得到自然边界积分方程，再求自然边界积分方程的数值解，与其他边界元方法相比，自然边界元法的计算量大大减小，并且具有很好的逼近性质，能有效地处理奇异积分，是求解GPS-边值问题有效方法。

Compare telluric method and see also SP.

参照大地电流法自然电位大地电流法和自然电位大地电流法自然电位。

This paper discussed the distribution of forest resources in the tropics, their main types, main characteristics and present management status, and proposed twelve management modes, and these modes include establishing nature conservation region, eco-public-benefit forest management, extravisme, limiting logging and regeneration after logging, logging three and remaining seven method, tropical shelterwood system, sylviculture douce, whole cultivation method, specialized cultivation method, strip clearcutting method, developing tree species of lacking noted and nature regeneration, closing hillsides to facilitate afforestation.

本文对世界热带地区的森林资源分布、基本类型、主要特征、世界次生林的经营现状和主要经营方式讨论。这些经营方式包括建立自然保护区、生态公益林经营、&采掘主义&、限制采伐和伐后更新、&砍三留七&法、&扶持&式育林法、&抑制&式育林法、整体培育法、专门培育法、带状皆伐法、开发欠知名树种、自然更新和封山育林。

Urban Remnant Natural Area is left behind in the urban planning area along with urbanization. Its landscape assessment is significant for urban natural preservation. On the basis of URNA's characteristics and in line of the domestic actual situation, psychophysical method, one of the most scientific and credible methods, is chosen to establish the complete landscape assessment system, including acquiring scenic beauty value by SBE method, dividing into different influencing factors by SD method, and setting up their connection model by multiple linear regression analysis. This method is also revised during the application process.

城市自然遗留地是随着城市化的进程在城市规划区内遗留下来的用地，根据城市自然遗留地城市性、自然性和遗留性的特点，结合国内的实际情况，运用目前最严格、可靠性最好的心理物理学方法，以相片为测试材料，采用SBE法获得美景度量值，SD法测定各景观要素量值，以及多元线性回归方法建立2者的关系模型，最终提出了城市自然遗留地景观美学评价完整的方法体系，并修正和完善了心理物理学方法在城市自然遗留地领域的具体应用。

On the basis of URNA's characteristics, psychophysical method, one of the most scientific and credible methods, is chosen to establish the complete landscape assessment system, including acquiring scenic beauty value by SBE method, dividing into different influencing factors by SD method, and setting up their connection model by multiple linear regression analysis.

城市自然遗留地是随着城市化的进程在城市规划区内遗留下来的的用地，根据城市自然遗留地城市性、自然性和遗留性的特点，结合国内的实际情况，运用目前最严格、可靠性最好的心理物理学方法，以相片为测试材料，采用SBE法获得美景度量值，SD法测定各景观要素量值，以及多元线性回归方法建立两者的关系模型，最终提出了城市自然遗留地景观美学评价完整的方法体系，并修正和完善了心理物理学方法在城市自然遗留地领域的具体应用。

A research of the cultivation treatments of the commonly used compost fermentations on Volvariella Volvacea production was made in this paper by comparison with the cultivation of raw ingredients. They are zymotechnics of water-logged compost, twice regular zymotechnics and simple twice zymotechnics. The result shows that the cultivation effects of above three are better than that of the cultivation of raw ingredients, among which the simple twice zymotechnics is the best.

研究草菇生产中常用的培养基发酵方法，以生料栽培为对照，采用自然堆沤发酵法、常规二次发酵法和简易二次发酵法对草菇栽培的影响，调查结果表明：自然堆沤发酵法、常规二次发酵法和简易二次发酵法的栽培效果都要优于对照，其中，效果最好的是简易二次发酵法。

During the first part, investigate the numbers and location of the different nature reserve, and review about its development, discuss the cause about the rapid developmeng about the protection areas of nature around Beijing. During the second part, this paper use the Geographical Information System to analyze the different sight function, plot our distinct function about the protection area of nature around Beijing. In the third part of this paper, the ecology function was special analyzed. This paper picked up several factor about the ecology and establish mathematics model to detect the most rational ecology distribution, bring forward the new constructive, wilder constructive and combination project. In the last parts of the paper, this paper use the Geographical Information System to analyze the different brim about the protection area of nature around Beijing, calculating the p/a and figure coefficient, and bring forward the brim theory for the nature reserve and city system.

在数量布局方面，包括北京周边各个不同级别的保护区的数目、位置分配布局和发展趋势研究，探讨北京市周边自然保护区数目和面积在99年和2000年突然增长的主要原因，以及今后北京自然保护区的发展方向；在景观布局方面，主要根据不同自然保护区的空间和功能的不同，计算延庆县各个自然保护区的景观多样性指数和景观优势度指数，并结合地理信息系统和航片，划分出不同的景观功能区间，以及各个功能区间之间的相互关系；在生态布局方面，综合考察北京周边自然状况，提取多项因子，建立评价模型，计算出各项因子权重，从而对其自然保护区的生态功能布局的合理性进行评价和趋势分析，为本文提出北京市周边自然保护区新建、扩建与合并的方案提供依据；在边缘布局方面，利用边缘效应理论和研究方法，创新提出&边缘类型样块分析法&，提取多个样方并结合地理信息系统，计算p/a比和自然保护区边缘的形状系数，划出自然保护区边缘效应趋势变化图，考察北京周边自然保护区的边缘效应，以及对城市的生态边缘功能。

Under the civil law, evolved from the general principles of natural law and justice by many generations of juris consults, philosophers, and statesmen, one cannot take property by inheritance or will from an ancestor or benefactor whom he has murdered.... In the Civil Code of Lower Canada the provisions on the subject in the Code Napoleon have been substantially copied.

由许多法学家、哲学家和政治家所阐述的正义与自然法的一般原则发展而来的民法认为，一个人不能因其谋杀行为而从被继承人或遗嘱人那里获得遗产，加拿大下议院制定的民法典就照抄了拿破仑法典的这项规定。

Under the civil law, evolved from the general principles of natural law and justice by many generations of juris consults, philosophers, and statesmen, one cannot take property by inheritance or will from an ancestor or benefactor whom he has murdered.... In the Civil Code of Lower Canada the provisions on the subject in the Code Napoleon have been substantially copied.

由许多法学家、哲学家和政治家所阐述的正义与自然法的一般原则发展而来的民法认为，一个人不能因其谋杀行为而从被继承人或遗嘱人那里获得遗产，加拿大下议院制定的民法典就照抄了拿破仑法典的该项规定。

Under the civil law, evolved from the general principles of natural law and justice by many generations of juris consults, philosophers, and statesmen, one cannot take property by inheritance or will from an ancestor or benefactor whom he has murdered.... In the Civil Code of Lower Canada the provisions on the subject in the Code Napoleon have been substantially copied.

由许多法学家、哲学家和政治家所阐述的正义与自然法的一般原则发展而来的民法认为，一个人不能因其谋杀行为而从被继承人或遗嘱人那里获得遗产，加拿大下议院制定的民法典就照搬了拿破仑法典的该项规定。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。