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定量溶液

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Pre-chlorination by Calcium Hypochlorite; this includes the tanks and equipment for the preparation of the solution and dosing the

次氯酸钙预加氯;包括储水罐和制备溶液及预先加定量次氯酸盐的设备

The degree of decreasing ofoxidation current is a function of the concentration of DNA, thus founding thebasis of DNA detection.

由氧化电流的减小量与DNA嵌入量的关系定量检测了溶液中DNA的含量。

Wear and corrosion involve mechanical and electrochemical mechanisms, and the combined action of these mechanisms often result in significant mutual reinforcement. To measure the effect on wear-corrosion resistance of the chemical and abrasion wear separately at the same time, wear-corrosion synergism rate is selected to indicate the nature and degree of the chemical and abrasion wear.

腐蚀磨损是同时涉及力学因素和电化学因素的复杂的材料的流失过程,通常条件下,腐蚀磨损不是纯磨损和纯腐蚀的简单叠加,还有两者间的协同作用,为定量描述腐蚀与磨损的促进程度、进一步完善腐蚀磨损机理,本文利用腐蚀磨损协同作用率值的大小来分析腐蚀和磨损的交互作用程度,结果表明:本文制备的镀层,在5%H_2SO_4溶液中腐蚀磨损时,机械磨损是造成镀层表面材料流失的主要原因,腐蚀和磨损的协同作用为次要因素。

The electrochemical properties of the corrosion of 430 ferrite stainless steel with different RE contents in the 3.5wt% NaC1 solution were studied by means of EIS (electrochemistry impedance spectroscopy). And the characteristics of textural component were quantitatively analyzed by the orientation distribution functions and inverse pole figure.

通过电化学阻抗谱研究了不同稀土含量430铁素体不锈钢在质量分数为3.5%中性氯化钠溶液中的腐蚀电化学特征,通过ODF分析和反极图定量计算研究了含稀土430铁素体不锈钢中织构组分特征。

The invention discloses a method for measuring seawater chemical oxygen demand by photometry, wherein the seawater exemplar is first pre-processed, then using the basic potassium hypermanganate as reaction system, the potassium permanganate is deacidized quantitatively by organics to produce manganate, using pure water or margin solution as reference ratio, measuring the absorbance an of the manganate at its maximum absorbing wave length 430 nm, drafting the A-COD value operating curve, obtaining the concentration of the organics in the water, i.e.

本发明公开了一种对海水化学需氧量进行测定的光度测定法,该方法首先将海水样品进行预处理,再以碱性高锰酸钾为反应体系,这样海水中的有机物在强碱性介质中与过量的高锰酸钾迅速反应,高锰酸钾被有机物定量还原后生成锰酸盐,以纯水或空白溶液作参比,在锰酸盐的最大吸收波长430nm处测其吸光度A,该吸光度A与海水样品中的有机物的含量具有正相关关系。

The bactericidal performance of Tetrakis Hydroxymethyl Phosphonium Sulfate, 2-Bromo-2-nitro-1.3-Propanediol and formalin was studied in a carrier quantitative germicidal test.

通过载体定量试验对四羟甲基硫酸磷、溴硝醇和甲醛溶液的杀菌效果进行测定。

The coupling between twisting and bending deformations and the influence of ionic concentrations to DNA intrinsic curvature are semiquantitatively studied and compared with experimental observations.

文章对缠绕形变与弯曲形变的耦合关系以及自发曲率与溶液离子浓度的关系都进行了半定量的讨论并和实验观测进行了比较。

After it was adjusted with ammonia until the test paper turned purple,in subacid medium of pH 6~7 ammonium acetate buffered solution,bivalent nickel was precipitated quantificationally by dimethylglyoxime.

试样以稀硝酸溶解高氯酸冒烟后,酒石酸掩蔽剂将铁等干扰元素配位掩蔽,以氨水调节至刚果红试纸呈紫色后,在pH6~7的乙酸铵缓冲溶液微酸性介质中,二价镍定量地被丁二酮肟沉淀。

The determination of chloride in industrial strontium carbonate by turbidimetry with spectrophotometer is described.

采用目视比浊法测定工业碳酸锶中的氯化物,若溶液有色,准确定量非常困难。

Therough the test of three-factor quadratic regression orthogonality,we study uqantitatively the relationship between the antiscale rate and the adding amount of LA,the calcium content of the solution and the PH value.We come to the regression equation,which fairly fits the result of the experiment and can be used as the study of the antiscale property and the usable condition of LA.

根据三因子二次回归正交设计实验,定量研究了阻垢率与溶液中阻垢剂LA用量、Ca2+含量和pH值之间的关系,得到的回归方程能较好拟合实验测定结果,可用于合成产物LA阻垢性能和确定其适用条件的研究。

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推荐网络例句

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。