查询词典 hashing function

Rule-based and reusebased method is adapted in our system to develop applications. Rules are used to define geometric representation of geographic objects, spatial relationships among geographic objects and map design rules. Reusability is realized through object's inheritance and encapsulation. The basic function related to GIS has been implemented in OOGDB's basic class base. Application related function can be implemented in sub-classes of basic classes and some of basic class' function can even be overloaded.

GIS应用系统的开发采用基于规则和基于重用的方法进行，规则用于定义地理对象的几何表示和空间关系以及地图构造的规则等，重用是通过面向对象的继承和封装机制实现的，GIS实现了一个基本的类库，它完成基本的空间处理和操作，用户通过定义这些类的子类重用类库提供的功能，并增加与应用系统有关的特殊功能，用户甚至可以通过重载修改某些类库的功能。

High protein feed can enhance airframe the absorption to zinc, keep in storage and feed of sex of metabolization; animal and the zincic absorptivity of inorganic, organic additive are taller, and the zincic absorptivity in plant sex feed is very low, zinc inside pig body excrete basically through bowel, along with eduction of fluid of pancreatic juice, bowel. 1.1 zinc inside pig body physiology function 1.1.1 raise collecting appetite zinc is element of the taste in saliva to make part, and the structural function with gustatory epithelial to oral cavity mucous membrane element and metabolization are influential action, affect the configuration of alveolus of the taste bud in glossal tit and function then, because this adds zinc,can enhance taste bud to taste sensitive.

高蛋白饲料能增强机体对锌的吸收、贮存和代谢；动物性饲料和无机、有机添加剂的锌吸收率较高，而植物性饲料中的锌吸收率则非常低，锌在猪体内的排泄主要通过肠道，随胰液、肠液排出。1.1锌在猪体内的的生理功能1.1.1提高采食量锌是唾液中味觉素的构成成分，而味觉素则对口腔黏膜上皮细胞的结构功能及代谢有影响功能，进而影响舌乳头中味蕾小孔的形态和功能，因此添加锌可增强味蕾对味觉的敏感。

Function is an important mathematical model, which brings to light the dependent relation between the variable in the objective world and the variable, but the graph of function then directly displays character and estate of function.

函数是揭示客观世界中变量与变量之间依赖关系的重要数学模型，而函数的图像则是对函数性态的直观表述。

Derivations of Green's functions, Green's function for the Laplacian operator, Green's function for the diffusion operator, Green's function for the wave operator.

格林函数：格林函数推导，广义格林函数，拉普拉斯运算子的格林函数，扩散运算子的格林函数，波运算子的格林函数。

In the Forestry Problem, the critical element is that the Growth Function is a Function of Time; not a function of stock.

在这些与林业相关的问题中，最关键的一个因素就是：森林值的增长函数是一个时间的函数，并非木材储量的函数。

Results showed that the CO2 absorb ability in the eight Crop systems net productivity process was 4 032 366ta^(-1); the amount of CO2 outlet in the soil was 3981753ta^(-1), less than the CO2 adsorb ability, so that the whole crop system was a weaker carbon sink process in the atmosphere. The continue planting species such as Rice, sugarcane, cassava, and melon crop or high haulm crops have the characteristics of annually crop net productivity CO2 absorb ability bigger than soil CO2 outlet and this systems had bigger carbon sink function ability; the short haulm crop systems of peanut, soybean, flowers, and vegetable annually crops net productivity CO2 absorb ability less than soil CO2 out let, but also carbon sink source. The CO2 absorb ability of fruits and economic parts above ground bigger than that which growth under ground. Except of the CO2 absorb ability less than the soil CO2 outlet in the peanut during growth in procreate period, the other seven crops CO2 absorb ability were bigger than that soil CO2 outlet during procreate period. Most of crops during growth in procreate period had carbon sink function ability, and only in barren period showed the carbon source function phenomenon.

结果表明：2005年广州市8种农作物系统作物净生产力吸收CO2 4032366ta^(-1)，其土壤CO2排放3981753ta^(-1)，吸收大于排放，对大气CO2而言，整个农作物系统是一个弱的碳汇；水稻、甘蔗、木薯和果用瓜4种连作或高杆作物系统每年作物净生产力吸收CO2量大于土壤CO2的排放量，系统具有较大的碳汇功能，花生、大豆、花卉和蔬菜4种矮杆作物系统每年作物净生产力吸收CO2量小于土壤CO2的排放量，系统起着碳源作用；果实或经济产量生长在地上部分的作物其单位面积吸收CO2能力比果实生长在地下的作物大；除花生在生育期间生物量吸收CO2量少于同期土壤排放以外，其余7种作物在生育期间生物量吸收CO2的量大于同期土壤排放，大多数农作物在生育期间具有碳汇功能，在撂荒期才体现碳源作用。

Because we mainly involve visual fields of medical science , have placed more contents on the development in the field of medical image of visual technology and argumentation used. Second part It is the visual technology knowledge, the generalization in such respects as the basic principle , basic functions, function store and three-dimensional animation technology to OpenGL ,etc. The realization of the system using OpenGL functions finish that three-dimension demonstration. The third part It is number value that calculate knowledge, three-dimension rebuild technology is it is it is it punish to fit to go on to need, the research of interpolator technology that cant leave, So this part has quoted the Hermite function principle , define cubic Hermite function to begin, calculate the differential coefficient among them draws cubic spline again.

由于我们主要是涉及医学可视化领域，所以将更多的内容放在了可视化技术在医学影像领域的发展与应用的论述；第二部分是可视化技术方面的知识，主要对 OpenGL 的基本原理、基本功能、函数库及三维动画技术等方面的概括，在系统实现时就是通过调用 OpenGL 函数库实现三维显示的；第三部分是数值计算方面的知识，三维重建技术需要进行拟合处理，离不开插值技术的研究，所以这一部分从埃尔米特函数原理开始讨论，引入三次埃尔米特函数，进一步计算时又引用三次样条函数。

Then, have stressed kinds of technology cubic Hermite function and cubic spline function, step by step, expand dual-cubic Hermite and dual-cubic spline function to progressively, sum up in the point that trinary cubic Hermite and trinary cublic spline finally.

讨论时重点突出了三次埃尔米特函数和三次样条函数，表达方式由浅入深，逐步扩展到双三次埃尔米特函数和双三次样条函数，最后归结到三三次埃尔米特函数和三三次样条函数。

Meromorphic function, holomorphic function, normality, iterate, fixed point, periodic point, periodic cycle, composite function, shared value, unicity theorem

亚纯函数，全纯函数，正规族，不动点，周期点，周期轨道，复合函数，分担值，唯一性定理

A b distribution function is proposed to replace the homogeneous distribution function in the particle optimal algorithm. It use a dynamic method to adjust the parameters of b distribution random function to improve the speed and quality of the feasible solution.

提出使用b分布函数来代替均匀分布函数的粒子群优化算法，在产生可行解的过程和迭代过程中动态地调整β随机函数的参数，以提高产生可行解的速度和质量。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48