再沉淀

Cyclophos phamide long-term storage of precipitation, after mixing and should be easily after re-dispersible; II in order to have a good flow properties and viscosity; three parts, a good storage stability about drying performance will be faster and appropriate; by not printing plate and business card printing and membership card making machine have any adverse effect; personality default cannot have too much hen'egg cretonne.

长期存放沉淀后，经搅拌后应很容易再分散；②要有良好的流动性能和粘度；③有良好的贮存稳定性；④干燥性能要快而恰当；⑤不能对印版及制卡和会员卡制作机有任何不良影响；⑥不能有太大的刺激性气味。

In this model of Tu Men River quality the functional structures of the deoxygenation coefficient k1, reaeration coefficient k2 and BOD sedimentation-resuspension coefficient k3 are established and tbe parameters determined by a regression technique to suit the characteristics of a river in the mountain area of North-Eastern China.

表达式中的参数通过系统识别与参数估计方法确定，因此能较好地反映河流的地理环境特点。特别是κ_3的表达式，它以流量为自变量，用一个单一的解析函数同时描述了江中的沉淀与再悬浮现象，具有独创性。

Fluosilicic acid,which is the byproduct from phosphate fertilizer factory,reacts with ammonium hydrocarbonate to obtain ammonium fluosilicate,then reacts with ammonium carbonate to form settled SiO 2,after filtration,water washing,drying and calcining,high purity SiO 2 with less than 10×10 -6 metal impurity and less than 10×10 -9 uranium and thorium respectively is made.

由磷肥厂副产氟硅酸同碳铵反应得氟硅酸铵，再和碳铵反应生成SiO2 沉淀，经过滤、水洗、干燥、煅烧得高纯SiO2 ，其金属杂质总含量小于 10× 10 -6，含放射性元素铀和钍各小于 10× 10 -9，通过实验获得了适宜的工艺条件，反应温度 70℃～ 80℃，反应时间 1 5h～ 2 0h ，配料比n(NH4HCO3 )∶n(NH4 2 SiF6 =4 4。

SODIUM GLYCOLATE— Transfer about 500 mg of it, accurately weighed, into a 100-mL beaker, moisten thoroughly with 5 mL of glacial acetic acid, followed by 5 mL of water, and stir with a glass rod to ensure proper hydration (usually about 15 minutes). Slowly add 50 mL of acetone while stirring, then add 1 g of sodium chloride, and stir for several minutes to ensure complete precipitation of the carboxymethylcellulose.

乙醇酸钠—取本品500mg，精密称定，置于100mL烧杯中，用5mL冰乙酸完全润湿，接着加5mL水，并用玻棒搅拌使水合作用完全（搅拌时间一般为15分钟），边振摇边缓缓加入50mL丙酮，再加入1g氯化钠，振摇几分钟以确保羧甲基纤维素沉淀完全。

Refined snake venom is first produced with snake venom of Pallas pit viper through twice chromatographic separation, saturated ammonium sulfate precipitation, centrifugal separation, dialysis and freezing drying and then produced into the said medicine through compounding, filteration, disinfection and packing.

一种治疗肝炎病的药物疏肝酶，是由复蛇蛇毒经两次层析分离，饱和硫酸铵沉淀，离心、透析、冷冻干燥而得精制蛇毒，然后再经配制、过滤、除菌灌注、封口而成。

There are some isoforms of PAPs showing inhibitory ability to virus infection in various organs and at different stages of development. Three different species of the protein can be isolated from leaves of pokeweed. Proteins were precipitated with 50-80% ammonium sulfate from leaves in spring, summer and autumn respectively. Proteins were purified on SP cation-exchange then on MQ anion-exchange and finally on MS cation-exchange or on MQ anion-exchange. We found that some new pokeweed antiviral proteins separated from these leaves were different from PAP, PAPII and PAPIII.

对美洲商陆春季、夏季、秋季采集的叶片，用50-80％饱和度硫酸铵沉淀出来的蛋白样品，经过SP阳离子柱后，上MQ阴离子柱，然后把活性蛋白峰再上MS阳离子柱或MQ阴离子柱分离，从春季叶片中分离出四个不同的抗病毒蛋白峰；从夏季叶片中分离出二个不同的抗病毒蛋白峰，这两个蛋白峰与春季叶片中分离出的活性蛋白峰都能重叠上；但从秋季叶片中只分离出来一个抗病毒蛋白峰，它和春季、夏季叶片中分离出的活性蛋白峰都重叠不上。

There are some isoforms of PAPs showing inhibitory ability to virus infection in various organs and at different stages of development. Three different species of the protein can be isolated from leaves of pokeweed (PAP, PAPⅡ and PAPⅢ). Proteins were precipitated with 50-80% ammonium sulfate from leaves in spring, summer and autumn respectively. Proteins were purified on SP cation-exchange then on MQ anion-exchange and finally on MS cation-exchange or on MQ anion-exchange. We found that some new pokeweed antiviral proteins separated from these leaves were different from PAP, PAPⅡ and PAPⅢ.

对美洲商陆春季、夏季、秋季采集的叶片，用50-80％饱和度硫酸铵沉淀出来的蛋白样品，经过SP阳离子柱后，上MQ阴离子柱，然后把活性蛋白峰再上MS阳离子柱或MQ阴离子柱分离，从春季叶片中分离出四个不同的抗病毒蛋白峰；从夏季叶片中分离出二个不同的抗病毒蛋白峰，这两个蛋白峰与春季叶片中分离出的活性蛋白峰都能重叠上；但从秋季叶片中只分离出来一个抗病毒蛋白峰，它和春季、夏季叶片中分离出的活性蛋白峰都重叠不上。

Look back again precipitate down of usually is a process.

再回首时沉淀下来的往往是过程。

But, as I said before, the precipitation was to re-start.

但是，就像我之前说过的，沉淀是为了再出发。

Methods: Sample was to be taken precipitation proteide , and then filtered.

样品经过沉淀蛋白处理，然后再过滤。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！