查询词典 precipitation

Tetragonal phase ZrO2 nano-powders containing 3% Y2O3 were prepared via the coupling route of W/O emulsion with urea homogenous precipitation, in which xylol was used as the oil phase, span80 as the surfactant, and an aqueous solution containing zirconium as the water phase.

摘 要：以二甲苯为油相，span80为表面活性剂，Zr(NO3)4(3Y)水溶液为水相的W/O 乳浊液，采用尿素均匀沉淀结合法制备四方相ZrO2(3Y)纳米粉。

The experimental results of stepwise ethanol precipitation showed that the yeild represents the increasing trend with increase of the ethanol concentration, their polysaccharides contents have significant changes, and at the ethanol concentration of 30% and 70%, polysaccharides contents are up to maximum. Molecular weights of endopolysaccharides and exopolysaccharides are pockety.

分级醇沉实验表明，各醇沉浓度对应的得率都随醇浓度的升高而呈增加趋势，多糖含量变化起伏较大，醇浓度为30%和70%时所得多糖含量较高，虫草胞内和胞外多糖分子量分布都很不均匀；分步醇沉测定了各部分多糖所占的比例。

Some technical obstacles, such as the dissolve of yttrium oxide, agglomeration and separated precipitation are overcome.

Ce的引入直接导致了新的电子跃迁的出现，而Ce3+-Fe3+电荷转移跃迁是造成Ce：YIG光吸收急剧增大的主要原因。

"The process includes contacting the finely ground ore with the cyanide solution, separating unwanted solids from the clear solution, and recovering the precious metals from the solution by precipitation with zinc dust."

该方法包括三个步骤，即将磨细的矿石与氰化物溶液接触；把固体物从净溶液中分离出来；通过加入锌粉沉淀从溶液中回收贵金属。

Tibet ; Abies georgei var.smithii virgin forest ; Distribution pattern of precipitation

西藏；冷杉原始森林；降水分配格局

On land, precipitation often is the limiting abiotic factor.

在土地上，降下雨水经常是限制非生活的要素。

Serum immunoglobulin of Amur sturgeon Acipenser schrenckii, Chinese sturgeon Acipenser sinesis and Huso sturgeon Huso dauricus which were healthy and unimmuned, was first time respectively purified by using saturation ammonium sulfate precipitation followed by Sephadex G-200 gel column chromatography. Molecular weight and partial characterization of Ig and heavy chain and light chain of Ig were measured by polyacrylamide gel electrophoresis, SDS polyacrylamide gel electrophoresis, Western blotting and Ouchterlony method.

采用饱和硫酸氨分步沉淀和Sephadex G-200凝胶层析的方法，首次分别纯化制备了健康非免疫状态下中华鲟、史氏鲟和达氏鳇的血清免疫球蛋白，并采用聚丙烯酰胺凝胶电泳、SDS-聚丙烯酰胺凝胶电泳、蛋白免疫印迹及免疫琼扩实验等方法对其Ig及Ig亚单位的分子量和部分特性进行了分析。

Using ammonium sulfate precipitation, Blue Sepharose CL-6B psuedo-ligand affinitive chromatography and Sephadex G-75 gel chromatography, we obtained the typeⅠRIP with high purity, the feasibility of this method has been approved by SDS-PAGE results.

结果显示：1。运用硫酸铵分级沉淀、Blue Sepharose CL-6B假配基亲和层析、Sephadex-G75凝胶层析等方法提取、纯化得到了高纯度的苦瓜RIP，并且本方法提取效率较高，所获得的RIP在SDS-PAGE上呈现为单一条带。

The extracting conditions of pectin from akebia trifoliate koiaz peels with the ways of ethanol precipitation or FeCl3 solutions were studied.

以三叶木通果皮为原料，分别采用乙醇沉析法和铁盐沉淀法探讨了提取果胶的最佳工艺。

The soil had the alkalize characteristic, and the decisive factors were terrain, texture and precipitation, so before the haloxylon ammodendron settled down, the soil had the alkalize characteristic, and the haloxylon ammodendron was alkali-resistant plant, but if the total alkalinity excessively high, the haloxylon ammodendron also grew difficulty.

土壤具有碱化特征，主要是由地形、质地、降水等结构性因素决定的，由此得出荒漠植被梭梭定居之前土壤就具有了碱化特征，梭梭是耐碱性荒漠植被，但总碱度过高的区域梭梭也难以生长，因此土壤酸碱度仍然是该区域影响梭梭生长和分布的重要因子。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。