实验法

The purpose of this study, on the base of former research, was to reveal and better understand some molecular pathogenesis of AE, to set up a working model which could be generally used by anther researcher in the field of animal molecular pathology. One-day-old SPF chicklings were inoculated via intracephalic injection at a dose of 0.03ml per chickling, consisting of 1:100 tissuer virus suspension.

本研究用AEV-NH937株组织毒1：100倍稀释，0.03ml/只脑内接种1日龄SPF雏鸡，分别在攻毒后1、3、5、10、14、20、25和30天迫杀实验攻毒组4只，对照观察组2只，分离血清，制备外周血、胸腺、法氏囊和脾脏的淋巴细胞悬液，同时采集脑组织，10%福尔马林固定，制备石蜡切片，做H.E。

The technique, which is less outgrowth and with a high conversion of sodium chlorate, is adopted.

本课题对过氧化氢法制备二氧化氯进行了实验研究。

The article studied and analysed the trace chlorophenol and nitrophenol in effluent by high performance liquid Chromatography-mass spectrometry.

对废水中微量氯苯酚、硝基苯酚进行了高效液相色谱质谱法分析研究，建立了一种简单、快速、准确测定废水中苯酚衍生物的实验方法。

MethodsThe antipyretic activity of ***PS was observed in rats with high temperature induced by dried yeast and 2,4-dinitrophenol; biliary duct cannula bile at 0.5,1,1.5,2,2.5 h after intraduodenal administration in rats was collected and counted to observe the effect of ***PS on biliary secretion;the weight of cholecyst in mice was counted to observe the effect of ***PS on the cholecyst of mice;the acute toxicity test of ***PS was done with mice.

方法采用干酵母、2，4二硝基苯酚致大鼠发热的模型观察玉米须多糖的解热作用；采用胆管引流法分别收集并计量给药后0.5，1，1.5，2 ，2.5 h的胆汁的方法观察***PS对肝脏分泌胆汁的影响；采用测定小鼠胆囊重量的方法观察***PS对胆囊的影响；对***PS进行了小鼠急性毒性实验。

Paper chromatography is a simple experiment and easy to do in class.

在教室里，色谱法是一个很简单很容易的实验。

Methods: In different time, the concentrations of CINC and the activities of myeloperioxidase were observed in experimental cerebral isc hemia reperfusion model with Sprague-Dawley rats made by modified thread em bolism method.

选用改良线栓法复制Sprague-Dawley大鼠脑缺血再灌注实验模型。对不同时间内的血清MPO活性及CINC水平进行测定。

Researched influence of frequency on characteristic of electromagnetic wave transmission in tunnels, and analyzed characteristic of electromagnetic wave transmission in circular, arches and curved tunnels by method of metal wave guide, and gives approximate formulas of attenuation rate. Main conclusions we obtain are as follows: in circular,rches tunnels, if frequency is higher, attenuation rate is smaller, it is beneficial for EM waves to transmit, in curved tunnel, higher frequency, more attenuation rate ...

研究了频率对井下电磁波传输特性的影响，采用金属波导法分析了圆形、拱形及弯曲隧道中电磁波的传输特性并给出衰减率近似公式，得出主要结论：在圆形和拱形隧道中，频率越高，衰减率越小，越有利于电磁波的传播；在弯曲隧道中，频率越高，衰减率越大，不利于电磁波的传播；通过特性曲线与井下实验数据相比较得出在900MHz左右为井下无线通信系统传输信号最佳频段。

This paper establishes a mathematical model of the gas flow field inside separating column of the circumfluent circulation cyclone separator based on the N-S equation under column coordinate,gives the resolution of the cyclone flow field in separating column with weighted residual method,and compares computation values with trial values as well.

由柱坐标系下的Navier-Stokes方程出发，建立了环流循环除尘系统分离柱内流速场新的数学模型，利用具有成熟使用经验的加权残值法对流场进行求解，并与实验结果进行了比较。

Reductive conversion of geraniol to citronellol is adopted as a model reaction, and several factors in the reaction are discussed using gas chromatography method. The influence of n-hexane and butyl acetate, as organic solvents, on biocompatibility was studied; the influence of methanol, ethanol, glycol, n-butanol and 1-hexanol, as energy substance, on the transformation efficiency was compared, respectively; the catalysis capabilities of Baker's yeast, XST-KO yeast, LP yeast, alcohol yeast, dry yeast, Saccharomyces cerevisiae, Angel yeast and Meishan yeast were discussed. It has been proved that biocompatibility of n-hexane are much better than that of butyl acetate, and the hexane has been demonstrated the most effective in terms of the influence on biotransformation, Baker's yeast has shown the highest tranformation efficiency among the eight yeast strains.

以香叶醇转化为香茅醇作为模型反应，通过气相色谱法进行定性和定量分析研究了影响该有机相生物转化反应的几个基本因素，考察了两种有机溶剂正己烷和乙酸丁酯对生物相容性的影响，选用甲醇、乙醇、乙二醇、正丁醇和l-己醇分别作为能量物质进行实验，比较其对转化的影响并探讨了Baker's酵母、XST-KO酵母、LP酵母、酒精酵母、假丝酵母、干酵母、安琪酵母和梅山酵母八种不同酵母作为生物催化剂对模型反应的催化能力，结果表明，正己烷作为有机溶剂，其生物相容性明显好于乙酸丁酯，更加有利于该生物转化反应进行；乙二醇作为能量物质，该模型反应转化率最高；而 Baker's酵母作为生物催化剂，对该模型反应的催化能力最强，最适合作为该模型反应的催化剂。

The molecular weight dependence of the distribfition of polymer molecules between the coacervate and the dilute phases on the phase separation of polymethylmethacrylate-acetone-methanol system has been proved to follow the relation first derived by Flory for binary systems: f"_j/f′_j = Qe~_j where f"_j and f′_j are the weight fractions of the polymer molecules of molecular weight M_j in the coacervate and in the dilute phases respectively, while Q and σ are parameters.

1。聚甲基丙烯酸甲酯-丙酮-甲醇体系的两次分相实验用θ-溶剂中的沉降速度法测定分相前试样和浓相的分子量分布曲线，得到高分子在浓稀相重量分配的分子量依赖关系 f_j=Qe~证实Flory的溶度函数形式与实际相符，并适用于三元体系的相分离，但Q值与两相体积比R值并不相同。 2。再分级使级分的分子量分布宽度随再分级次数的增加而减小，通常认为到第三次再分级其效果已不显著并不确实。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。