沉淀

In order to achieve uniform distributing water along the distributing water trough of peripheral feed sedimentation basin and improve the effect of the sedimentation basin,an equation of the water surface curve along the uniform distributing water trough and its hydraulic calculation were preliminarily discussed.

为使周边进水沉淀池的配水明槽均匀布水，提高沉淀池的沉淀效果，对沿程均匀配水槽的水面曲线方程及其计算进行了初步探讨。

The reaction characteristics of flocculus formed in the reaction of cationic polymer to hydrolyzed polyacrylamide and the mass ratio of cationic polymer to HPAM in complete reaction were investigated experimentally. The flocculus has good ability to reduce the core permeability and the capability of washout resistance.

室内实验结果表明，阳离子聚合物与阴离子聚合物发生反应可产生稳定的絮状沉淀，完全反应时阳、阴离子聚合物的质量比为 30∶1；当絮状沉淀的浓度较高时，它具有很好的携砂能力，絮状沉淀可使岩心的渗透率降低 88%以上，且具有良好的抗冲刷能力。

Water-rock interaction demonstrates that, a gold-boring formation , i. e., a set of light metamorphic clastic gritstone, sandy slate, and tuffaceous slate in Wuqiang Runnel Formation, Ban Stream Group, act as the source of gold deposits in South-West Hunan. The gold is originally derived from volcanic eruption materials in Wuling-Xuefeng period; for the typical single gold deposit such as Mobin, which is short of sulphide, chlorine is very important in the metallogenic process; sulphur and chlorine perform as the major negative ions to form complex ions with Au throughout the gold activation and migration movement. The complex ion of chlorine and gold may keep stable in a wide range of temperature; the physical-chemical conditions in typical geothermal fluid system are of deciding significance for gold activation, migration and precipitation.

特定体系的水岩实验证实了漠滨及整个湘西南金矿的成矿元素Au和伴生元素主要源于赋矿围岩-板溪群五强溪组的一套浅变质碎屑砂岩、砂质板岩和凝灰质板岩；首次突破传统认识，证明氯在中低温热液体系中能与Au形成稳定络合物的形式进行运移，因此氯在本区Au成矿过程中起着相当重要的作用；成矿热液流体中Au主要以金硫、金氯络合物形式在溶液中迁移，阴离子∑S、Cl〓对金的活化、迁移及沉淀起主导作用，Au的伴生元素As、Sb在热液体系中与Au形成金锑、金砷络合物有利于金的进一步活化、迁移及沉淀；中低温热液流体成矿过程中，体系的物理化学参数对Au的活化、迁移及沉淀富集起决定性作用。

There were many reasons attributed to this phenomenon: macromolecules, which were from raw material such as polysaccharides and proteins decomposed incompletely in the process, formed precipitation through biochemical reaction, many kinds of bacteria were not removed totally after fermenting, which caused bacterial precipitation, Fe3+ from fermenting equipments combined with polyphenol and proteins to form infusibility complex.

中文摘 要：食醋在其保质期内经常出现混浊现象，其原因主要有：原料中的大分子物质，如多糖、蛋白质等分解不彻底，后经过生化反应形成沉淀物质；发酵完成后，食醋中的各种微生物未及时清除，从而造成的菌体性沉淀；以及由于生产设备中的Fe3+与原料中的多酚、蛋白质等大分子形成的不溶性络合物所造成的沉淀。

Using potato tubers of Irish cobbler variety naturally infected with X- and Y-virus, the writer compared the concentrations of X-virus in the young sprouts of different seed pieces longitudinally cut from the same tuber and subjected to various temperatures, light and darkness, normal and dereased oxygen tensions during the period of germination.

在定温箱内所做的发芽温度试验的结果指出，块茎在20℃中发出的幼芽内X-病毒的浓度最高，沉淀滴度一般在1/80—1/160之间，最高的达到1/320，千日红上平均半叶斑点数目约为30.16°及24℃中的病毒浓度相近，沉淀滴度约为20℃的1/2，斑点数目达20℃的2/3左右。28℃发出的幼芽内病毒浓度最低，平均沉淀滴度约在1/10—1/20之间，平均半叶斑点数目为11.9。

Serum and Ig in serum of the three sturgeons can react with serum of rabbit anti each of the three sturgeons' Ig, but cannot react with serum of rabbit anti Ig of carp Cyprynus carpio. The Ouchterlony results show that Ig of sturgeons are immune homologous in structure and sequence, but have little immune homologous characters compared with Ig of high-classification Osteichthyes such as carp.

免疫沉淀反应的结果显示，3种鲟鱼的血清及其Ig与相互之间的兔抗Ig血清有免疫沉淀反应，但与兔抗鲤Ig血清无免疫沉淀反应，这表明3种鲟科鱼类的Ig在结构和序列上是较为相似的，而与鲤鱼等高等硬骨鱼类的Ig存在较大的差别。

In this design, we use the way of the electrolyte flow in through the bottom of reactor and overfall at the top of reactor to discharge the deposition at the process of reaction. Thus, we successfully solve the problem of the flocculation and deposition of Al3 in the reactor.

在本设计中，采用了从反应器底部进电解液、上部溢流的方法，及时的排出了反应过程中产生的沉淀，成功的解决了Al3沉淀在反应器内絮凝、沉淀的问题。

The invention provides a system used for recycling urban automobile-washing water, which is a system formed by organic combination of a pretreatment unit, a mechanical treatment unit and a control unit, wherein, the pretreatment unit comprises a fence and a sedimentation tank, and chemical treatment; the fence is arranged on an inlet of the sedimentation tank; the mechanical treatment unit adopts a centrifuge and is arranged on an outlet of the sedimentation tank; and the control unit comprises a peripheral circuit, a singlechip and a variable-frequency motor.

本发明提供的城市洗车用水循环利用系统，是由预处理、机械处理和控制单元的有机组合来的系统，其中：预处理单元包括栅栏以及沉淀池和化学处理，栅栏设置在沉淀池的入口处；机械处理单元采用离心机，它设置在沉淀池的出口处；控制单元包括外围电路、单片机和变频电机。

Phytin was extracted with diluted hydrochloric acid, after precipitating the effluent and transforming the precipitate with sodium hydroxide, sodium phytate solution was produced.

采用化学沉淀法由菲汀制取植酸和植酸钠。菲汀经酸浸、沉淀、加碱使沉淀转化可制得植酸钠溶液。植酸钠溶液经减压浓缩、乙醇结晶可制得针状的植酸钠晶体，或经离子交换树脂酸化、浓缩可得浓度为70%的植酸

Autologous cultured epidermis containing a controlled number of melanocytes induced repigmentation of all piebald lesions, with mean percentage repigmentation of 95.45%(2,791.5 cm2 repigmented/2,924.2 cm2 transplanted).

自体培养表皮包含了一组引发所有白斑病灶再色素沉淀的已被掌握数目的黑色素细胞，其再色素沉淀的平均百分比为95.45%(2，791.5 cm2 再色素沉淀面积/2，924.2 cm2 已移植表皮面积)。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。