生长函数

The sixteen plants are firstly divided into six types according to evaluation grades and subject function statistical method:the first type is Cajanus cajan and Crotalaria mucronata,the best adaptability ,which can be used pioneer plant or constructive species; the second type is Cynodon dactylon,the better adaptability, which can be used constructive species ;the third type is Eragrostis curvula, Paspalam notatum,which can be used constructive species on rotten rock slope ; the forth type is kummerowia striata,Lotus corniculatus and Vitex negundo.The adaptability is centered,and can be used protection species and auxiliary species;the fifth type is Robinia pseudoacacia,Eremochloa ophiuroides,Vitex negundo,Lespedeza formosa,Leucaena leucocephala,Desmodium sequax, Rhus chinne- nsis,which can't be plant singly and be used accessory species;the sixth is Trifolium repens,which can be used pioneer plant.

根据评价边坡防护植物适应性的十个重要指标，首次运用隶属函数和聚类分析方法，对各供试植物的边坡适应性综合排序并分为六类：第一类为木豆和猪屎豆，边坡适应性最强，适宜作为先锋植物和建群种；第二类为狗牙根，边坡适应性强，适宜与豆科植物混播，作为建群种；第三类为弯叶画眉草和百喜草，边坡适应性较强，适宜与豆科植物混播，作为风化岩边坡的建群种；第四类为鸡眼草、百脉根和马棘，边坡适应性中等，适宜作为保护种与伴生种；第五类为刺槐、假俭草、荆条、美丽胡枝子、银合欢、波叶山蚂蝗和盐肤木，边坡适应性较差，不宜单独在边坡上种植，最好与速生型豆科草本混播，作为边坡防护植物群落的辅助植物；第六类为白三叶，边坡适应性最差，但因其出苗率高、生长速度快，作为先锋植物，起到前期覆盖坡面的作用。

A new definition, expectation of soil moisture content (E/ cm·g·g-1), was introduced in order to reflect better characteristic of soil moisture in root zone.

引入土壤含水率期望的概念，建立了含水率期望值与根系分维值之间的函数关系，并求出了适宜胡杨生长的土壤含水率期望值的范围。

Furthermore, we analyze and explain the growth phenomenon of individuals' code length in genetic inductive logic programming. On the basis of the research about equivalence class problem existing in first-order rule mining, we propose a fitness function based on information gain.

此外，我们还对自己提出的GILP算法运行中的个体编码生长现象进行了研究，并在对一阶规则挖掘中的等价类问题的研究基础上，提出了基于信息赢取的适应度函数。

The growth dynamics of leaf length on stem and tiller could be described with a logistic model, leaf width with conic equation, and leaf shape with exponential function and quadratic equation. The effects of nitrogen and water conditions on leaf growth were quantified by the effective values of leaf nitrogen concentration and water content.

模型采用Logistic方程描述了水稻主茎及分蘖叶片随生长度日的动态伸长过程；利用二次曲线描述了叶宽随GDD的动态变化过程；分别用幂函数和一元二次方程描述了叶形的动态变化过程；另外，以叶片氮素和水分因子分别描述了不同水氮水平对叶片形态建成过程的定量影响。

"S" curve of growth ; Gauss distribution function ; training curve ; professional teaching model design ; correlation analysis

"S"型生长曲线； Gauss分布函数；人才培养曲线；专业教学模型设计；相关分析

The characteristics of growth curve were analyzed,a Gauss distribution function training model was established by fitting education law.With the actual higher vocational education,the design methods and steps of professional teaching plans were given,and the model was optimized by using correlation analysis.

分析了生长曲线的特征，依据教育规律建立了Gauss分布函数的人才培养模型，结合高等职业教育实际给出专业教学计划的设计方法和步骤，运用相关分析对模型进行优化。

With the correlation, the second moment of crystal size distribution in the kinetic model of literature was able to be replaced, and the parameters of nucleation and crystal growth rate were able to be directly acquired by computer program design.

利用此关联式，对文献模型中晶体粒度分布函数的二阶矩量进行替换，并结合计算机程序设计，可直接拟合得到结晶体系的成核和生长动力学参数，从而为结晶动力学模型的求解建立了一种新型算法。

The content of tissue water can reflect status of growth. The tissue water got its greatest content in the animal bodies at 25℃. Tissue water decreased as a function of salinity.(6)The isosmotic point for subadult Macrobrachium nipponense is about 14‰, the optimum temperature for its growth is around 25℃.

5组织水含量可反映出机体生长状况，本实验25℃各盐度实验组动物体内组织水含量最高；不同温度下组织水含量的下降都是盐度的函数。

The diameter distribution shaped a gentlely left bias normal distribution curve. This article shows law of diameter structure of natural Betula L.

本文利用Weibull分布函数拟合的结果也表明了桦树天然林不同生长发育阶段直径结构的这些规律。

It is obvious that, in the interface between substrate and diamond film,there exists the lattice strain effect resulting from lattice misfit because ofthe difference between the lattice constants.The lattice strain effect willcause some nonnegligible influences on the processes of diamond films′growth.

在本论文中，我们首次提出了在异质衬底上研究金刚石薄膜生长机理时必须引入晶格应变效应微扰修正的物理思想，并借鉴固体能带应变微扰理论，首次在分子轨道理论框架下建立起计算晶格应变微扰效应的理论，其中包括提出了计算单个化学键应变张量的方法和由分子轨道波函数计算应变微扰Hamilton矩阵元的方法。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。