水

Water- consumed was increased with irrigation times, if the irrigative water under PFM was the same as no PFM.

在覆盖地膜的情况下，给甘蓝进行三水和两水灌溉，都会成为奢侈灌水，并且随着灌水次数的增多，耗水量也增多。

Hydrophobic-hydrophilic macroporous polydivinylbenzene/polyacrylethylenediamine interpenetrating polymer networks (PDVB/PAEM IPN) were prepared by the sequential suspension polymerization method. These were composed of two networks, of which one was hydrophobic and the other was hydrophilic. The objective of this work was to study the adsorption thermodynamics and adsorption kinetics of this hydrophobic- hydrophilic IPN. The focus was on adsorption isotherms of vanillin at different temperatures, and these fit well into the Freundlich adsorption isotherm. The isosteric adsorption enthalpy, adsorption Gibbs free energies and the adsorption entropy could be calculated according to thermodynamic functions.

采用分步悬浮聚合法制备了具有疏水性能的聚二乙烯基苯(polydivinylbenzene， PDVB)为第一网，具有亲水性能的聚丙烯酰乙二胺(polyacrylethylenediamine， PAEM)为第二网的疏水／亲水大孔聚二乙烯基苯／聚丙烯酰乙二胺互穿聚合物网络(interpenetrating polymer networks， IPN)，研究这类疏水／亲水IPN组成的树脂对吸附质的吸附热力学和吸附动力学；测定了该树脂对香兰素在不同温度下的吸附等温线，吸附等温线符合Freundlich等温吸附方程，利用热力学函数关系计算出了吸附焓、自由能和熵变。

Aimed at the study of Lauraceae system classification in domestic and overseas,genetic diversity and genetic variation between Cinnamomun micranthum Hayata natural populations and Ex-situ conservation poputations and relationship among Its Close Relative Species of Cinnamomum camphora Presl,Cinnamomum burmannii(C.G.etTh.Nee) Bl,Phoebe bournei Yang. Litsea subcoriacea Yang et P.H.Huan. Neolitsea aurata Koidz,Lindera communis Hemsl and Persea Americana Mill.were studied by inter-simple sequence repeats molecular marker.The research aimed at genetic variation between Cinnamomun micranthum Hayata populations,so that can offer the molecular theoretic and practical method for conservation and utilization of Cinnamomun micranthum Hayata populations.

针对目前国内外对樟科植物系统分类的研究现状，本研究采用ISSR分子标记技术对樟科沉水樟天然居群和迁地保护居群的遗传多样性进行研究，从分子水平上分析沉水樟种群的生态遗传及其遗传变异规律；同时利用ISSR分子标记技术比较沉水樟及其近缘种香樟、阴香、闽楠、桂北木姜子、新木姜子、香叶树、鳄梨在分子水平上的亲缘关系，揭示这些树种在樟科植物系统进化中的作用与地位，探讨沉水樟及其近缘种的遗传多样性及其分化格局，为樟科植物的系统分类提供分子水平的依据。

Medusa release in Millepora is affected by light and their sex. Male medusae were released prior to females; while dark treatment delayed the release of male and female medusae.

初步研究发现火珊瑚释放水母体与光线和性别有关，雄水母体比雌水母体先释放出来，不论雌、雄群体，置於暗组的火珊瑚释放水母体的巅峰时间，要比置於正常情形下的来得晚。

The hydrophobic and hydrophilic organic fractions each accounted for about 50% of DOC of the secondary effluent samples. Hydrophobic acids were the largest group accounting for 42%, followed by hydrophilic acids and non-acid hydrophilic matters at 26% and 24%, respectively; nonacid hydrophobic matters at 8% were the smallest group.

实验结果表明：当生化出水中有机物浓度以DOC表征时，水中硫水性物质与亲水性物质各占50%，其中疏水酸浓度最高，约为42%，其次为亲水酸和非酸亲水物质，分别占25%和24%，非酸疏水物质仅为8%。

A series of hydrophobically associating copolymers of acrylamide with octadecyl acrylate were synthesized in this paper.

疏水缔合型水溶性聚合物是指在亲水性大分子链上带有少量疏水基团的一类水溶性聚合物。

Some conclusions were drawn: Oenanthe javanica grew normally when TN and TP concentrations in raw water were 7.05-9.99 mg/L and 0.29-0.73 mg/L respectively; with the hydraulic load being 0.5 m^3/(m^2d), the removal rates of NH3-N, TP, and TN from heavily polluted river water by Oenanthe javanica floating bed were positively related to water temperature, and it inhibited the growth of algae stably; the mean removal rate of nutritive salt increased with the concentration of raw water.

研究结果表明，进水ρ和ρ分别为7.05~9.99mg/L和0.29~0.73mg/L，水芹菜能正常生长，在水力负荷为0.5立方公尺/的条件下，水芹菜浮床对重污染河水中的NH3-N，TP，TN的去除率与水温正相关，对藻类的抑制作用稳定；营养盐的去除负荷随原水质量浓度的增加而增大。

A new direction of arrival estimation method is proposed using a single vector hydrophone, which is composed of three spatially co-located but orthogonally oriented velocity hydrophone plus another co-located pressure hydrophone.

摘要提出了一种基于单个矢量水听器的二维波达方向估计方法，该矢量水听器由三个空间轴向垂直的振速水听器和一个声压水听器构成。

An advanced non-destructive measurement technique was applied for the first time in the research of two-phase transport of gas-water in coal seam. The home-made triaxial osmoscope which is made up of non-magnetic polycarbonate material and can change confining pressure, axial pressure and pore pressure, was placed into the magnetic cavity of NMRI instrument.

首次将先进的无损检测NMRI成像技术引入煤层中气水两相运移的研究领域，将自主设计研制的、可同时改变围压、轴压和孔隙压的、非磁性聚碳酸酯材料制成的三轴渗透仪置于NMRI成像仪磁体腔中，通过气驱水和水驱气NMRI试验实时观测了气水流动规律。

In the recent 30 years of the Guhai water-lifting project ,shortage middle arid zone society and the economic development it has made great contribution to since the outly was shortage for a long time,the project facility cannot obtain the immediate service,aging day by day.

固海扬水工程近30a来，为宁夏中部干旱带的社会及经济发展作出了巨大贡献，但是由于长期以来经费短缺，工程设施得不到及时维修，老化日益加剧，为了对宁夏固海扬水工程设施老化状况作出定量的科学评价，通过长期实践并结合数学理论知识，建立了固海扬水渠道工程老化现状评价的数学模型，为固海扬水工程进一步改造和规划提供科学决策的依据。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐