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The water diffusion processes and the relationships between water diffusivities and soil water contents in typical meadow Calamagrostis angustifolia wetland soil in Sanjiang Plain were simulated by horizontal soil column infiltration method.

运用水平土柱入渗法模拟研究了三江平原典型草甸小叶章湿地土壤的水分扩散过程以及水分扩散率与土壤含水量之间的关系。

In the increasing development of national economy, it is so important that we should utilize water resource efficiently and manage it capably because water a very essential resource for living and manufacturing. So the way we used to collect data by human must be changed in order to digitalize, informationalize water conservancy.

随着国民经济的不断发展，水资源作为一种重要的生产生活资料，它的有效利用和科学管理显得更为重要，因此改变以往的人工统计方式，实现水利数字化、信息化势在必行。

By focusing on the coupling of water and fertilizer and using all-purpose regression design with four factors and five levels, and based on pot experiments and quantitative analysis, the coupling effect of water and fertilizer on Casuarina equsetifolia biomass was studied in order to solve the inconsistency problem of water and fertilizer supply on coastal sandy land.

针对滨海沙地因水肥不协调而形成大面积低效林分的问题，以水肥耦合为中心，以1年生木麻黄幼苗为研究对象，采用四因子五水平二次通用旋转组合设计，利用盆栽试验和定量分析的方法，研究探讨了在不同水肥条件下，水、N、P、K四因子对木麻黄生物量的影响。

Dehydration process based on hollow fiber composite membrane is one of the crucial and effective methods to remove water vapor from industrial gases such as light hydrocarbon, compressed air, natural gas and so on. Dehydration of propylene with VP method was studied in the thesis. We prepared the PVA/PS、CS/PS and PVA-CS/PS hollow fiber composite membranes by spread method. The permeation behavior of water vapor among coagulable light hydrocarbons through composite membranes and asymmetric membrane was researched by vapor permeation method. Also a differential mathematical model was established which can describe dehydration of gas phase propylene.

本论文以采用蒸气渗透法脱除丙烯中微量水分为目标，制备了 PVA/PS、 CS/PS、PVA-CS/PS 中空纤维复合膜；研究了可凝性轻烃蒸气中的微量水分在复合膜、非对称膜中的渗透行为，建立了描述丙烯气相脱水的数学模型，并进行了模拟计算；深入探讨了水蒸气在交联 PVA 致密膜中的渗透机理。

Dehydration process based on hollow fiber composite membrane is one of thecrucial and effective methods to remove water vapor from industrial gases such aslight hydrocarbon, compressed air, natural gas and so on. Dehydration of propylenewith VP method was studied in the thesis. We prepared the PVA/PS、CS/PS andPVA-CS/PS hollow fiber composite membranes by spread method. The permeationbehavior of water vapor among coagulable light hydrocarbons through compositemembranes and asymmetric membrane was researched by vapor permeation method.Also a differential mathematical model was established which can describedehydration of gas phase propylene.

本论文以采用蒸气渗透法脱除丙烯中微量水分为目标，制备了 PVA/PS、CS/PS、PVA-CS/PS 中空纤维复合膜；研究了可凝性轻烃蒸气中的微量水分在复合膜、非对称膜中的渗透行为，建立了描述丙烯气相脱水的数学模型，并进行了模拟计算；深入探讨了水蒸气在交联 PVA 致密膜中的渗透机理。

According to the water quality characteristics of mine water in Shanxi province experiment is made to study to removal effect of sulfate radical by coagulative adsorption of mine water .

针对山西省煤矿矿井水的水质特性，研究通过混凝吸附作用对矿井水中硫酸根的去除效果，通过实验，发现在pH=7~8时，采用Ca2+PAC+少量PAM的药剂投加方式，对矿井水中硫酸根的混凝吸附去除效果较好。

The factors affect on the degree of substitution of product, yield and apparent viscosity, such as the mol rates of EPTAC with -NH2, reaction temperature, reaction time and the content of water in system have been discussed in detail. FTIR spectrometer and UV spectrometer are used to characterize the structure of the derivative and it is proved that substitution reaction mainly occurs on the -N element .The particle size and morphology of chitosan and quantemary ammonium salt of chitosan are analysised by comparing photos of their scanning electron microscope. The degree of substitution of HACC is determined by acid -base conductometric titration. An error in current formula of DS has pointed out and a correct formula has presented.On the base of experience of above experiment, the reaction conditions of HACC were systematically investigated through orthogonal design, and then the best conditions are found. Water-solubility and dependence of pH are studied.

壳聚糖和环氧丙基三甲基氯化铵在异相条件下发生反应，通过单因素实验，制备了一系列不同性能的壳聚糖季铵盐，本文首次详细讨论了反应条件(反应摩尔比、反应时间、反应温度、水含量)对产率及产物性能的影响；用红外光谱和核磁共振对结构进行表征分析时，发现季铵盐阳离子基以N位上取代为主；通过电镜图片对壳聚糖和季铵盐衍生物外观形貌进行对比，采用酸碱电导滴定法测定产物的取代度，并对常用取代度公式做了修正。

Thus a power plant may withdraw substantial amounts of water for cooling from a river but use that permits it to be returned directly to the river, perhaps a bit warmer, for use by the next downstream user, A farmer may withdraw the same amount of water for irrigation, but the vast majority of it may be used consumptively by plants and become unavailable for any other activity.

例如，电厂可以从江河里提取大量的水用于冷却，而不是使用，这样就允许水直接返回到江河里，也许水温稍稍有点热，但可供下游的用户使用。农民可能提取相同的水量用于灌溉，但是大部分水被电厂消耗掉，无法用于其它活动。

Methods The Cynomorium polysaccharide and Cynomorium water extract were extracted and prepared chewable tablets. Wistar rats were randomly divided into normal control, aging model, VitE, Cynomorium polysaccharide chewable tablets and Cynomorium water extract chewable tablets groups. Dgalactose was injected to establish the aging model. After drug intervention, the proliferation activity of rat spleen lymphocytes stimulated by ConA was detected by MTT assay and the spleen index was measured. The pathological morphological changes of spleen were observed. The activity of superoxide dismutase, the content of malondialdehyde and nitric oxide in serum of rats were detected.

提取并制备锁阳多糖、水提取物咀嚼片；Wistar大鼠随机分为空白对照组、衰老模型组、维生素E对照组、锁阳多糖组、水提物组，以D半乳糖建立衰老大鼠模型，药物干预后，MTT法检测各组大鼠脾淋巴细胞对ConA刺激的增殖能力，检测各组大鼠脾脏指数，观察脾组织的病理形态学变化；并检测各组大鼠血清中超氧化物歧化酶活性、丙二醛及一氧化氮的含量。

The antimicrobial test and researched was done on wide distillation of different solvents on Terpenoid, polarity separation of ethanol distillable substance, thin layer chromatography of different polarities and distillation of amylase. The results showed that the active substance distilled by 95% ethanol and V methanol: toluene=3:1 had stronger antimicrobial activity on Agaricus blazei Murrill. The antimicrobial activity of ethyl acetate was stronger than wide distilling substance with ethanol, but the water part has not antimicrobial effect. Two straps of ethyl acetate phase（Rf0.57、Rf0.63）(0.1g/ml)had stronger antimicrobial activity on Agaricus blazei Murrill, the antimicrobial zone on Pseudomonas was 19.3mm. The bacteriostatic activity of chromatography strap of water phase was rather weaker, the water solution (0.5g/g) of amylase had better effect on pathogenic fungus of Agaricus blazei Murrill, its antimicrobial zone on Aspergillus niger, Citrinin, Trichoderma viride were 10.8 mm, 7.9 mm, 5.3 mm.

通过对日本凹顶藻以不同溶剂的粗提、乙醇提取物的极性分离、不同极性的薄层层析和多糖的提取，进行抗菌试验的研究，发现95%乙醇和V甲醇：甲苯为3∶1的提取的活性物质具有较强的抗姬松茸的病原细菌活性，乙酸乙酯相对病原细菌的抑菌强于乙醇的粗提物，而水相基本无抑菌效果，乙酸乙酯相的两个带（Rf0.57、Rf0.63）浓度为0.1g/ml具有较强抗姬松茸病原细菌的活性，对假单孢杆菌抑菌圈达到19.3mm，水相层析带的抑菌活性较弱，多糖的粗提物配成0.25g/g的水溶液对姬松茸病原真菌有较好的抑菌效果对黑曲霉、桔青霉和绿色木霉的抑菌圈分别达到10.8 mm、7.9 mm、5.3 mm。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。