缓冲

On the condition of the existence of the buffer solution of ammonium acetate (PH5-6) and ammonium thiocyanate, quantitatively reduce Cu2+ into Cu+ by using sodium thiosulphate .

本文在PH5-6的乙酸铵缓冲溶液及硫氰酸铵存在下，用硫代硫酸钠定量还原Cu~(2+)为Cu~+，Cu~+与SCN~-结合，形成稳定的硫氰酸亚铜白色沉淀，反应终点可由全自动电位滴定仪确定。

For the safety of LAN and using firewall thriftily,the authors analyze the architecture of Netfilter in Linux2.4 kernel.Then the authors implement the firewall system based on embedded Linux OS,which has basic functions as Package Filtration,URL filtration,NAT and log.And,the firewall system integrates with DMZ which establishes a buffer zone between Internet and Intranet to make the Intranet safer,and connection tracking which maintains a table for connection track in order to get the more safer than package filtration.

为了构建安全可靠的网络，同时降低使用防火墙的成本，对Linux2.4内核防火墙结构Netfilter的实现机制进行了深入的研究和分析，并利用该机制设计实现了一个嵌入式Linux防火墙系统，该防火墙实现完善了包过滤、URL过滤、NAT和日志等防火墙基本功能，同时集成了非军事区，为Internet和Intranet之间建立了缓冲地带，以保证Intranet的安全。

At 1st、2nd、3rd months after surgery the rats were killed respectively and the implanted tibiae were got , the tissue samples were fixed with 10% Formaldehyde soaked and 8% formic acid was used to dissolve the calcium for 10 days.

于种植术后1个月、2个月、3个月时，取出带种植体的胫骨，取下的标本立即放入10%甲醛缓冲溶液固定、经过8%甲酸溶液脱钙、梯度酒精脱水后，制作HE染色的组织学切片，做光镜及骨组织的形态计量学观察。

Principle— The titrimetric determination of water is based upon the quantitative reaction of water with an anhydrous solution of sulfur dioxide and iodine in the presence of a buffer that reacts with hydrogen ions.

原理---水分滴定测定法是基于水与二氧化硫和碘的无水溶液，在能与氢离子反应的缓冲溶液下发生的定量反应。

Its toasty fleece lining will keep you super warm while its padded insole will cushion your every step.

它的烤面包片的羊毛衬里会让你超温暖而其缓冲垫鞋垫将您的每一步。

This gives you a ball of terry cloth toweling that provides a flat surface against your finish, plenty of cushion between your hand and the paint, and something for your hand to grasp onto.

这样你可以得到一个球形的厚绒布毛巾，它可以在与烤漆接触的接面上形成平坦的表面，在你的手和漆面间形成充足的缓冲垫，以及使你可以将毛巾抓牢。

Different from the routine trapeziform curve of frequency converting speed system, the motor's speed was adjusted according to exponential curve , and soft braking was realized by detent unit contained in the power module, enhancing the fluency and stability when running.

自动门的运行速度曲线与常用的梯形变频调速曲线不同，采用S形曲线对电机进行调速控制，以及采用自带缓冲制动单元的功率模块实现柔性制动，增强了自动门运行的稳定性和平滑性。

The red blood cells were obtained by centrifugation of the DN plasma samples at 3000 r/min for 5 min and deproteinized with trichloroacetic acid.

和20 mmol/L pH 6.86的磷酸缓冲液，在25 kV，30 ℃和200 nm条件下，可在3 min内同时对血红细胞中GSSG和GSH定量分析。

In this sense, IDA plays dual effects, tridentate chelating to Cu(2) and bridgebetween two Cu(1) andCu(2).3 Metal complexes were selected as the appropriate for the study of cleavage plasmid pBR322DNA by gel electrophoresis technique. The results showed Ni and Mn complexes could cleave effect- ively DNA in the presence of H2O2 at physiological pH and temperature, whereas individual Zn complex could cleave effectively DNA.

通过电泳实验研究了一系列金属配合物与pBR322DNA的作用，发现在Tris-HCl缓冲溶液中，生理条件下，镍、锰配合物在共反应物H_2O_2存在下能够很好的断裂DNA，而Zn配合物单独作用就能够使DNA由ccc型转化为oc和linear型。

PartⅢImmunoresonance Scattering Spectral Analysis of Trace Fibrinogen with Labeling Gold-nanoparticle 9.0 nm gold nanoparticles were prepared by the trisodium citrate and used to label goat anti-human fibrinogen.

在pH 6.2的Na2HPO4-NaH2PO4缓冲溶液中，金标羊抗人纤维蛋白原与纤维蛋白原产生特异性结合，在PEG作用下，羊抗人纤维蛋白原包裹的金纳米微粒释放出来并发生了聚集，体系在580nm处的共振散射峰增强。

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。