水凝胶

"Cricket quencher," a gel polymer that insects suck water out of, can also be used.

"板球淬火"，凝胶聚合物昆虫吸吮水出来的，也可以使用。

A sol containing SiO_2 particles was prepared by the base catalyzed hydrolysis and polycondensation of tetraethoxysilane through sol-gel process. A solution containing double-chain polymer of methyltriethoxysilane was also prepared under acid condition, as the introducer of water repellence.

通过溶胶-凝胶法，在碱性条件下水解缩聚正硅酸乙酯获得含有SiO2颗粒的溶胶；以甲基三乙氧基硅烷在酸性条件下水解缩聚获得双链聚合物溶液，作为疏水基团的引入剂。

Under heat and pressure, the silica forms a solid gel, trapping the remaining water within its structure.

在高温和压力下，形成一个稳固的二氧化硅凝胶，其余水围困在其结构。

The effects of the amount of catalyst,water and ethanol on the properties of silica sol were investigated.

研究了催化剂、水以及乙醇的加入量对溶胶性质的影响，用粘度、凝胶时间、粒径等对溶胶的性能进行了表征。

The density, the specific surface area, porosity and particle diameter of hydrophobic SiO2 aerogels range from 77 to 200 kgm^(-3), 500 to 750 m^2g^(-1) and 88% to 93% and 50 to 200 nm, respectively.

结果表明，所制备的疏水SiO2气凝胶的密度、比表面积和孔隙率分别为77~200kgm^(-3)，500～750平方公尺g^(-1)和85%~95%，其颗粒尺寸为50~200nm。

A basic knowledge of microbiology, will be detected with a microscope observation of micro-organisms, medium Preparation, disinfection and sterilization, separation and purification of micro-organisms, bacteria counting method A chemical analysis of the theoretical knowledge and can use chemical analysis methods and equipment of the components of material analysis Master fermentation process principles, understanding of beer, liquor, fermentation production technology Master protein related knowledge, PAGE gel electrophoresis technology, high-speed centrifugal Genetic engineering master the basic theory of knowledge, the extraction and purification of genes, PCR principle, gene recombination technology Master of the basic theoretical knowledge, the immobilized enzyme, the enzyme preparation Application Master of animal and plant tissue culture techniques of experimental steps studied experimental apparatus: Balance (scales, electronic scales, Analytical Balance), or acidity, spectrophotometer, liquid gas chromatography, acid-base titration apparatus, microscopes, centrifuges, ultrasonic cleaning, constant temperature oscillation incubator, super-clean table, steam sterilization pot, the pot constant temperature water bath, PAGE device apparatus, oven, fermenter, such as PCR instrument.

具备微生物理论基础知识，会用显微镜检测观察微生物，培养基的制备、消毒与灭菌，分离与纯化微生物，细菌的计数法具备分析化学的理论知识，能运用化学分析和仪器分析方法对物质的组分进行分析掌握发酵工艺原理，了解啤酒、白酒、发酵生产工艺掌握蛋白质相关知识，PAGE凝胶电泳技术，高速离心掌握基因工程的基本理论知识，基因的提取和纯化，PCR技术原理，基因重组技术掌握酶的基本理论知识，酶的固定化方法，酶制剂的应用掌握动植物组织培养技术的实验步骤学过的实验仪器：天平（台天平，电子天平，分析天平）、酸度计、分光光度计、液气相色谱仪，酸碱滴定仪器，显微镜，离心机，超声波清洗器、恒温振荡培养箱、超净工作台，蒸气灭菌锅、恒温水浴锅，PAGE电泳装置仪器、干燥箱、发酵罐、PCR扩增仪等。

But the bird was almost out of sight now and nothing showed on the surface of the water but some patches of yellow, sun-bleached Sargasso weed and the purple, formalized, iridescent, gelatinous bladder of a Portuguese man of war floating close beside the boat.

它伸张着须夷，凝胶状的气囊飘浮到船边，翻了个身，然后又复原，在水面上彷佛一个气泡一样好轻松愉快地飘浮着，身后拖着一条有毒的紫色细丝，在水里漂着有一码长的距离。

The expansive power isprocess in common to tumefaction that petty crystalloid AFt suck water andpressure to concrete pores that AFt crystal gather volume.

其膨胀驱动力是凝胶尺寸的晶体钙矾石吸水肿胀和结晶状钙矾石对孔隙产生膨胀压的共同作用。

The results indicate that under the action of novel phosphoaluminate cement, the symmetry and stability of hydration resultants of SC-paste-acted are higher than that unacted, therefore, the former might be more durable.

IR分析表明，复合水泥浆体水化产物相晶体结构的对称性较SC的高，由此可推测其稳定性增强，浆体耐久性好。SEM表明，水化浆体中的C-S-H凝胶交织成网络状，结构致密。

Adenosine was used as the raw material, dissolved in triethyl phosphate and then esterified with thiophosphoryl chloride under 0~5℃ for 8h without water and oxgen, in alkaline condition provided by 2,6-dimethylpyridine, introducing thiophosphoryl ester to adenosine.Then superfluous triethylamine was added and reacted under 5℃ for 1h to synthesize rough 5'-AMPS.The unpurified product was appled to a DEAE Sephadex A-25 column and eluted with triethylammonium bicarbonate.

用腺苷为起始原料，溶解于磷酸三乙脂中后，在无水无氧环境中及2，6-二甲基吡啶提供的碱性条件下与三氯硫磷以0~5℃下发生酯化反应8h，将硫代磷酸酯引入腺苷，然后再与过量三乙胺在5℃下反应1h，合成粗产品，再用碳酸氢三乙胺作洗脱液，过DEAE Sephadex A-25凝胶柱纯化。

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