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Nowadays working state is analyzed and test is compared in this paper .An optimal running method in water backwashing and air scour of trickling filter is proposed ,by means of timing to improve technics rules of trickling filter.

本文通过对现有工况的分析和试验对比，通过调速手段改善气水反冲洗滤池的工艺条例，提出了气水反冲洗滤池的优化运行方案。

Several SP2 mutant plants were obtained from induced Impatiens balsamina L.seeds by space flight,and their blades were investigated in this paper.The writer calculated the K-S statistics and the levene statistics,also made use of SPSS 11.5 to have the independent-samples t test and the univariate in the prerequisite of some fundamental presumptions.

对航天诱变凤仙花SP2代若干单株的叶片长度和宽度进行了统计分析，对试验数据进行了柯尔莫哥罗夫-斯米尔诺夫检验，计算了样本的列文统计量，并采用Spss 11.5统计分析软件检验了基本假设的满足条件，进行了独立样本t检验。

Extracts from 6 species of IPomoea batatas Lam leaves have been determined for their bacteriostatic effects on five types of pathogenetic bacteria (Escherichia coli,Bacillus subtilis, staphylococcus aureus, staphylococcus albus, and Proteus vulgaris) by using the methods of the filter paper disk test s and the dual-flat tests.

用滤纸圆片法和双层平板法测试六种不同品种红薯叶（SPGS—1，SPGS—2，SPGS－3，SPGC，SPRC，SPRS）的提取物对五种致病菌：大肠杆菌、枯草杆菌、金黄色葡萄球菌、白色葡萄球菌、普通变形杆菌的抑制作用、结果发现SPGS—1、SPGS—2、SPGS—3和SPRS四种红薯叶提取物有明显的抑菌作用，其最低抑制浓度范围为0.4g／ml～1·0g／ml

In order to find out the active components, the analysis on chemical composition of the leaf from Broussonetia papyrifera uangyechu through the technology of test tube and paper chromatography were accomplished. The results showed that the leaf contains phenols, amino acids, proteins, polypeptides, saponins, flavonoids and its saponins, sterols, and triterpenes.

为研究光叶楮叶中的化学成分，采用试管法和圆形滤纸层析法对其进行测定，结果表明：光叶楮叶片含有酚性成分、氨基酸、蛋白质、多肽、皂苷、黄酮及其苷类、植物甾醇、三萜等多种化学成分。

By applying biological functional test systems, this paper aims to study the influences of the herbicide acetochlor on the heart rate and electrocardiogram of Bufo gargarizans.

采用生物机能实验系统，对乙草胺胁迫条件下蟾蜍Bufo gargarizans的心率和心电活动的相关指标进行了测定和分析。

Taking Carica papaya and celery as main materials,the processing technique for the mixed drink and its stability have been studied throug h orthog onal test 、sense assess and microbiolog ical analysis in this paper.

以番木瓜、芹菜为主要原料，采用正交设计、感官评价和微生物检验等方法，筛选了复合饮料的最佳配方，探讨了其稳定性，确定了番木瓜芹菜复合果蔬汁饮料的最佳工艺。

In this paper, five oxygenic terpenoids —Carveol (C10H160),Carvone (C10H140),Menthone (C10H180),Carvyl acetate (C12H1802) andCedrol (C15H260) were used as test compounds and barnyardgrass( Enchinochloa crusgalli L.) receptor in rotational regression design experiment.

以5种含氧萜类物质香芹醇、香芹酮、薄荷酮、香芹基乙酸酯和雪松醇为化感物质替代物，以稗草为受体，运用正交旋转回归组合实验，分析物质间的互作效应。

At the same time, on the base of analysis of the present situation, the development trend and the leading edge technology, the necessity and feasibility about the exploitation of the full hydraulic bulldozer"s sate monitoring and fault diagnosis system is given; According to the structure, working feature and working environment, it works out system schema and system composition; The system is divided into display module, communication module and fault diagnosis module by means of block design, the implementation method and key parameter are also given; In light of the features of the full hydraulic bulldozer, the state monitoring and fault diagnosis platform composed of controller RC6-9 and display DI2/10 is designed based on CAN-Bus and the hardware design is completed; It lists the measured values and state of monitored parameters which should be real-time displayed in monitoring module as well as the data which will be transmitted; Furthermore, On the base of the study of, it gives 34 kinds of constant faults" diagnosis methods; Using BODAS software and DPS software, it compile the program code of the controller and the displayer; At last, this paper design and make the simulation test device of control system of construction machinery, through the experiment, the realizability, the categoricalness, the reliability, the stability and real-time are tested, in addition, the improved methods are given.

本文收集整理了国内外智能推土机研究的相关文献资料，综合分析了国内外智能推土机的研究现状、发展趋势和前沿技术，论证了开发全液压推土机智能系统的重要组成部分&全液压推土机状态监测与故障诊断系统&的必要性和可行性；根据全液压推土机的结构、作业特点和作业环境，制定了全液压推土机状态监测与故障诊断系统方案，确定了系统的结构组成；采用模块化设计方法，将整个系统分成了显示、通信和故障诊断三个模块，给出了各模块功能的实现方法，确定了各模块的关键技术参数：选用RC6-9和DI2／10作为系统的控制器和显示器，用CAN总线搭建了系统的通信平台，完成了系统的硬件设计；确定了系统监测参数和通信数据，对全液压推土机常见故障特征进行了分析，给出了34种常见故障的诊断方法；在BODAS软件和DPS软件的集成编程环境下，编写了控制器和显示器程序；设计并制作了工程机械控制系统模拟试验板，并在此基础上通过多次的程序调试与试验，对所设计的全液压推土机状态监测与故障诊断系统功能的可实现性、完备性、可靠性、稳定性和实时性进行了检验，证实了此系统的可行性，并提出了进一步的改进方案和措施。

In this paper,Triple Test Cross Design was used in studing the resistance of soybean to 10 physiological race of Cercospora Sojina Haraby inoculation.

摘要本实验利用三点测交分析的方法，对3个组合在人工接种大豆灰斑病菌的条件下的抗性表现进行基因效应分析，各组合均存在加性，组合1存在显性，组合2、3存在上位性。

In this paper, two kinds of uniflow hydrocyclone's spin movement are caused by bar vertex ban inlet setting. Its performance prediction is based on CFD analysis and a mass of test. By FLUENT application and selecting the RSM model, CFD analysis is performed on 66mm returned flow hydrocyclone and 70mm uniflow hydrocyclone (cone-shaped, columniform), pressure field and velocity field and inner flow field are gained, this approves the results of CFD analysis accord with experimental results. Based on the results of CFD analysis, the schemes of optimum structure may be raised.

设计的两种直流式水力旋流器内的自旋运动是由新型涡流板入口结构引起的，它的性能预测是基于数值计算和大量的实验，通过利用Fluent流体动力学软件，针对旋流器实验样机的主体结构形式，基于RSM模型对内部流场的压力分布、速度分布和流体流动情况，对66mm返流式水力旋流器和70mm直流式水力旋流器进行了模拟分析，为水力旋流器的结构优化设计提供了借鉴。

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。