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The feeding and excretion of three little fishes (Hemiculter. leucisculus, Tilapia. aurea and Cirrhinus. molitorelld) was studied and their effect on water quality of Qiankeng reservoir in Shenzhen City Around the topdown effect of fish was also studied. Based on the analysis of their stomach contents, their diet composition was assayed. The three fishes" feeding rhythm in cage and their rate of digestion indoor were looked into, and their daily ration was estimated through the method of daily average fullness index. Using the spectrophotometer, the content of chlorophyll a in the stomach was measured, and the feasibility of taking the chlorophyll a as an index of measuring the feeding of fish on phytoplankton was studied. Adopting the national standard method, the effect of the three fishes" excretion on total nitrogen, total phosphorus, CODMn, pH, turbidity and conductivity coefficient was surveyed. The effect of feeding and excretion offish on water quality was discussed and the results revealed as follows:H.

围绕鱼类的下行效应，本文以深圳茜坑水库三种小型鱼类Hemiculter leucisculus罗非鱼Tilapia.aurea和鲮鱼Cirrhmus.molitorella为研究对象，以胃含物分析为基础，分析了三种鱼类的食物组成；调查了网箱中自然状态下三种鱼的摄食节律，在室内调查了三种鱼的食物消化速率，运用日平均饱满指数法计算出三种鱼的日粮；采用分光光度法测定了鱼体肠叶绿素含量，探讨了叶绿素作为鱼类对浮游植物摄食量衡量指标的可行性；采用国家标准的水质测量方法，测定了鱼类排泄对总氮、总磷、高锰酸盐指数、pH、浊度和电导率的影响量。

Finally it was found that the present of Oligochaetes not only brought better characteristics of the sludge such as good settleabilily, but also minished the membrane fouling greatly, and did not affect the effluent quality. And most important of all, in the case of almost no sludge production discharged, MLSS could be kept nearly 4000mg/L in more than 40 days when Oligochaete was present, which meant that there was no sludge production in the process.

同时，试验还发现大量蠕虫的存在，对出水水质的影响不大，但能够改善污泥特性，减缓动态膜污染，污泥浓度能自平衡于4000mg/L左右；并在近40天内，在没有排泥的情况下，无污泥量的增加，即实现了减量剩余污泥排放。

Considering property of solid abrasive lapping with high machining efficiency and large proportion of auxiliary working time, this paper develops a new lapping machine with computer control technology and digital display technology. It can reduce worker's labor strength and auxiliary working time, on-line measure lapping height, assure workpiece size accuracy and lap automatically.

针对固着磨料研磨效率高，辅助工时比重大的特点，将计算机控制技术和数显技术应用于研磨机上，研制出新型研磨机，在减轻工人劳动强度的同时，大幅度减少辅助工时，并对研磨加工量能进行在线检测，以确保工件尺寸精度，提高了研磨机的自动化程度。

Considering property of solid abrasive lapping with high machining efficiency and large proportion of auxiliary working time, this paper develops a new lapping machine with computer control technology and digital display technology. It can reduce worker's labor strength and auxiliary working time, on-line measure lapping height, assure workpiece size accuracy and lap automatically and improve lapping machine properties.

针对固着磨料研磨效率高，辅助工时比重大的特点，将计算机控制技术和数显技术应用于研磨机上，研制出新型高速研磨机，在减轻工人劳动强度的同时，大幅度减少辅助工时，并对研磨加工量能进行在线检测，以确保工件尺寸精度，提高了研磨机的自动化程度，改进了研磨机的性能。

The PCR product was cloned into PGEM-T-Easy DNA plasmid by TA cloning, and hINS gene was analyst and compared to the published sequence ,and found that this hINS gene is same to one of the published sequence and there are four different bases with the other published sequence.

为了进一步验证扩增出的hINS基因能否在蛋白质水平上表达，用构建的乳腺特异性表达载体制作转基因小鼠，利用转基因小鼠作为个体表达系统来检测目标蛋白表达量。

The results showed that DNA vaccine pcDNA3.1-3-1E could remarkably increase the number of CD8+ T lymphocyte after two immunizations,and also could provide partial immune protection against homologous Eimeria challenge,such as significantly decreasing oocyst shedding,reducing the average lesion score in duodenum,improving body weight gain and so on.

结果显示，与载体对照组相比，质粒pcDNA3.1-3-1E 2次免疫后可显著提高脾CD8+ T淋巴细胞亚型数量，并具有一定的抗球虫免疫保护作用，可显著减少每克粪便的卵囊排出量，降低十二指肠病变记分，减少增重下降等。

Patients who received more than 15 pints of blood often showed a tendency to ooze from cut surfaces.

输血量超过15品脱的病人往往表现出从切断面渗出血的趋势。

In order to get more statistic features involved, the wavelet parameters of infrared cloudy sky images are directly put on the table after that. A set of self-contained features is extracted and simulation experiments are done by feature matching.

为研究图像的更多统计特性，我们还通过直接对目标图像小波分解系数进行研究，从中提取出了一组较为完备的统计量作为特征，同时利用特征匹配的方法进行了仿真实验。

The ordering parameters of GaInP are deduced from the polarization dependence {E||[110] and E||[1 0]} of the PR signals from the emitter regions. The ordering related piezoelectric fields are found to influence the electric field, as evaluated from the observed Franz-Keldysh oscillations, in the GaInP region. According to the experimental data of the as-grown GaInP/GaAs/GaAs samples, we find that for the same emitter doping level the emitter field in the more ordered materials is smaller than in the less ordered sample.

经由分析A系列样品的FKOs信号，估算出射极/基极区域的内建电场，加上极化实验的结果，可以估计磷化铟镓的有序程度；因为压电场的关系，发现当GaInP能隙越小时，内建电场也会跟著降低；温度变化实验，验证其内建电场会随著温度增加而变大，只是变化量不甚明显；利用Varshni及Bose-Einstein方程式来估计一些与温度相关的参数值，并与相关文献比较，其结果颇为相符。

First, we extract the boundaries between two different materials by weighting with gray-level gradient,and only voxels on these boundaries participate in the generation of each image, so it drastically reduces the rendering time. Second. We think the voxels on boundaries as the mixture of different materials,so in every voxel there is a surface. We use the oriented cube-interpolation technique to get the intersection point of viewing orientation and the surface in the voxel, then compute the surface normal of the intersection point. We use the normal to shade the voxel in order to improve the image quality.

首先，采用灰度梯度加权提取出三维数据场中不同物质间的边界，根据显示的需要只对这些边界上的体元赋予相应的阻光度并进行光亮度合成计算，因而可大大减少计算量，提高显示的速度；将边界上的体元作为不同物质的混合体，采用与方向有关的三线性插值来计算视线方向与体素内等值面的交点，根据交点的法向量进行光照效应计算以提高显示图像的质量；最后用投影成像法显示最终的图像。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。