查询词典 function field

The papes utilizer Parzen's kernel estimate theory which was used in estimating the function ofprobability intensity and Chen Xiru's results in the field to strictly prove the following fact.Whenusing non-completeness knowledge sample W to find the law which W would be kept to,thefrom:is closer to real pthan the estimate of rectangular diagram.

本文借鉴Parzen提出的概率密度函数的核估计理论和陈希孺教授等研究的结论，用概率论的方法严格证明了下列事实：用非完备知识样本估计其观测值应遵循的概率分布规律时，扩散型估计：得到的分布比用直方图法得到的估计更接近于真实概率分布p。

The research is about the reuse of urban sewage for virescence irrigation, and the influence of sewage irrigation on eco-environment such as soil, plant, etc. is studied. Under the condition of field sewage irrigation, the transport and transformation and accumulation mechanism of heavy metals, nutrients and organic pollutants as vaporizable hydroxybenzene etc. in the soil-plant system are analyzed. The heavy metal pollution is evaluated by the comprehensive pollution index. The spatial variability of heavy metals in sewage irrigation area is further understood. The spatial variability of heavy metals and physical and chemical properties of soil are reflected in a more straight way by the theory model of variance function curve based on the geographical information system.

在城市污水回用于绿化灌溉对土壤、植物等生态环境的影响研究中分析了大田条件下污灌对土壤-植物体系中重金属、养分及挥发酚等有机污染物迁移转化及富集机理，对重金属污染进行了综合污染指数评价，进一步了解了污灌区重金属分布的空间异质性，基于地理信息系统提出了变异函数曲线的理论模型，更直观地反映出了重金属元素与土壤理化参数的空间变异特征。

Based on the constrained variation principle, the penalty function suited to electromagnetic field calculation is proposed in this dissertation. Detailed research is conducted on some problems, such as the selection of penalisation parameters, the effect of penalisation parameters to the CPU time and the accuracy of solutions.

本文基于变分原理构造了适合电磁场数值计算的罚函数，得到了系统的控制方程，并对罚因子的选取原则及罚因子对计算精度和计算时间的影响进行了深入研究。

Many chemists and material specialists are apply themselves to this field. It will make the biology engineering and the function material into vastitude development.

目前国际上不少化学家和材料学家正致力于这方面的研究，这将是一个使生物工程和功能材料具有广阔发展前景的领域。

This model mainly depends on the smoothing effect of Gaussian function to create the edgeflow vector field.

该模型主要利用高斯函数的平滑作用产生边缘流场。

By using first principles pseudopotential method and density functional theory, the effect of external electric field on the work function changes of Ag, Au and K adsorbed on W(001) surface has been studied.

基于局域密度泛函理论和第一性原理赝势法，计算了Ag ，Au ，K在W(0 0 1)表面上吸附时的功函数随外加电场的变化关系。

The electromagnetism lifts heavy objects the function to have the formidable magnetic field strength, several dozens ton heavy iron sheet, the iron wire, the nail, the scrap iron and other each kind of iron material, do not pack a box not to pack do not need to tie up, can very conveniently the collection and the transporting, not only operates reduces effort, moreover worked simplifies.

电磁起重机能产生强大的磁场力，几十吨重的铁片、铁丝、铁钉、废铁和其他各种铁料，不装箱不打包也不用捆扎，就能很方便地收集和搬运，不但操作省力，而且工作简化了。

If this teaching is being impelled it has the function of giving the teachers a safe, convenient, economical outdoor teaching area and increases the mentors teaching materials. To the students it has the benefits of developing the attitude of cherishing and respecting life and to understand the characteristic of animals and plants. The anxiety however comes from the lack of educational teaching materials (55%), natural resources' lack of professional maintenance (53%), lack of funds (45%) and lack of relative knowledge (44%). The conclusion are that the government can conduct studies relative to the knowledge of Ecological engineering method or publish periodicals in order to increase the teachers' (50%) chance of getting in touch with knowledge of this field and let the supplier, middle man, acceptant of the education system to bring into full play of their abilities by providing them with more supports.

此一教学如加以推动，对教师而言是具有「可提供一个方便、安全、经济的户外教学场域」和「可增加教师的教学资源」等较重要的功能；对学生而言，则具有「可养成爱惜与尊重生命的态度」和「可让学生从实物中了解动、植物生态特性」等效益；但较担心的是教学教材资源（55％）、自然资源缺乏专业维护（53％）、经费（45％）及相关知识（44％）等的不足；因此，政府机关除了可以多办理有关生态工法知识的研习或发行刊物，以增加教师（50％）对这方面知识的接触机会外，在其他各方面亦应该提供更多的协助，让教育系统供给者、中介者及接受者都能发挥最大的功效。

Therefore, this text has a foothold in the macroscopic district field of vision, choice the representative of agrestic settlement in Yunnan, inquire into factor function in district, the development mechanism of the agrestic settlement , then make an outlook in the future to agrestic settlement .

因此，本文立足于宏观区域视野，选择具有代表性的云南乡土聚落，探讨区域因素作用下，乡土聚落的发展机制，进而对未来云南乡土聚落发展做出展望。

The visual function of amblyopic eyes is reduced more significantly in the central region than in the peripheral region of the visual field.

1。弱视眼中心区损害重于周边区，弱视眼在中央区视功能下降明显。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。