分等

Disaster embodies theidea of animatism and the division of man and heaven. In succession, itinvestigates the relationship between man and nature as shown in zaiyi, byanalysising the scientific elements in the theory of zaiyi, which is different fromdisaster in logic.

灾害反映了万物有灵、天人相分等思想观念；接下来，论文通过对"灾异说"中科学因素的分析，论述了灾异中的人与自然关系。

There are three difference formats in this thesis. They are backward difference, Crank-Nicolson"s difference and Galerkin"s difference.

本文对时间域采用的离散格式有两点向后差分、Crank-Nicolson格式差分和Galerkin差分等。

The first is on the study of spectra technique in boolean function and in its probability function.

得到布尔差分等布尔运算在此映射下的实函数运算，并用有限离散变换实现了从原函数到象函数、到象函数偏差分，以及到布尔差分的象函数的变换，并研究了这一系列变换的性质。

Besides, about physiological characteristic test, isolates were cultured at various temperature and pH value, to botanize mycelial growth rate and dry weight of sclerotia, and numbers of sclerotia.

此外利用温室接水稻台梗九号上所获得的病害指数在不同区域获得水稻纹枯病菌之间发现并无差异以0到5分等介於2.8到3.3之间。

In chapter 1, we introduce some notions and some classical results related to this paper, such as Cauchy type integral as well as the limiting value of Cauchy integral and so on.

第一章介绍了本文涉及到的知识背景和相关的基本概念：Cauchy型积分，Cauchy主值积分等，以及本文要用到的与它们有关的一些经典结果。

This paper summaries the technical r oute of farmland grading supported b y GIS and explains in detail some key s teps like the creation of farmland graphic library and mathematical model,the gradin g of evaluating element,and output o f final graphs.

如何利用GIS技术开展农用地分等定级工作，本文概述了地理信息系统支持下的农用地分等定级的技术路线，GIS环境下图形库的建立、评价单元的划分、数学模型的建立，成果图的输出等几项关键步骤。

With the practice and research on the grade-determination of the cultivated land , the paper, based on the concept and purpose of the grade-determination of the cultivated land , has analysed the problems existing in the course of practice and summarized the reasons about " the rules of the grade-determination of farming land " which the Ministry of Land and Natural Resources had issued , including the issues about dependence between grading index of cultivated land and utilizing index ,or dependence between grading index of cultivated land and natural index , lack of the nationwide comparativity of the achievement on grade-determination of the cultivated land ,the sudden change indexes between the paddy field and its adjoint nonirrigated farmland, the representativeness of appointed crop and so on.

通过耕地分等的实践和研究，文章从耕地分等的内涵和目的出发，对国土资源部颁布的《农用地分等定级规程》在实践过程中所存在的问题及其原因进行了归纳和分析，其中包括耕地等指数与自然等指数、利用等指数的相关性问题，耕地分等成果在全国范围内缺乏可比性问题，相邻地块间水田和旱地的等指数出现突变问题，指定作物的代表性问题以及熟制问题等。

As one of the most important lumber grading systems in North America, machine grading does non-destructive test by stress rated machines, and then classify the lumbers into different grades according to their bending strength and the modulus of elasticity.

规格材的机械分等方法是北美一种很重要的分等体系，即采用机械应力测定设备对木材进行非破坏性试验，按测定的木材弯曲强度和弹性模量确定木材的材质等级。

In order to make the current grade-determination method of the cultivated land more rational, the paper has analyzed the natural and social economic factor of cultivated land quality deeply. Many ideas, including the theoretical foundation on grade-determination, the authenticity of the basic materials, the division of the index district, the determination of the appointed crops and their parameters , the largest theory output of the crop and the definition of the suitable range about index district, the control of the equivalence district in the county , the revision of the multiple crop index and the application of GIS ,etc. have been deeply discussed, and the current grading model of the cultivated land has been revised.

为使现行耕地分等方法更趋合理，本文以耕地质量评价的相关理论为基础，强调了基础资料对等别划分的重要性，明确了获取方法，并对指标区的划分、指定作物及其参数的确定，作物理论最大产量及其适用范围的界定，县域范围内等值区的控制，土地利用系数的修正、复种指数的修正和GIS在耕地分等中的应用等方法进行了深入探讨，修正了现行耕地分等模型。

This paper, by establishing some functions between theoretic unit production of standard crop and natural quality of farmland graduation, and between feasible unit production of standard crop and utilization index, verifies the theoretic unit production, feasible unit production, and based on this, the regional theoretic unit production, regional feasible unit production.

通过建立农用地分等单元标准粮理论单产和自然质量等指数的函数关系、标准粮可实现单产和利用等指数的函数关系，分别核算分等单元的理论单产及可实现单产，以此为基础核算区域理论产能及可实现产能。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。