硫酸

Iso-butyl cinnamate was synthesized by the esterifiestion of iso-butanol with cinnamic acid with the presence of potassium bisulfate monohydrate.

应用硫酸氢钾催化肉桂酸与异丁醇的酯化反应，合成了肉桂酸异丁酯。

In this paper the quantitative method for citric acid in electropolishing solution by ion chromatography is described.

研究用离子色谱法对电镀抛光液中柠檬酸的测定方法，选择合适的分离条件，使电镀抛光液中磷酸、硫酸和柠檬酸得到很好的分离。

The noxious gas contained in the tail gas out of garbage incinerator and coal burning boiler is collected by bag filter with japanese techniques, This technology can achieve desulfuration and harmness gas through ejecting slaked lime dry power and reaction auxiliary agent to fult gas, sulfur dioxide and harmful gas.harmful gas and slake lime carry chemical reaction adequately,forming solidastate calcium sulfate and and other attachments, which will either adhere to stive or coacervate into nice granule and finally been absorbed.

垃圾焚烧炉尾气中的有害物质和燃煤锅炉煤中的硫燃烧后主要是以二氧化硫的形态存在，这种呈气态的二氧化硫和有害气体是无法用任何其它种类除尘器收集和捕捉的。本技术是通过向含有粉尘、二氧化硫和有害气体的烟气中喷射熟石灰干粉和反应助剂来实现脱硫、脱有害气体的。二氧化硫、及有害气体和熟石灰在反应助剂的辅助下充分发生化学反应，形成固态硫酸钙(CaSO4)和其它附着物，附着在粉尘上或凝聚成细微颗粒，随粉尘一起被袋式除尘器收集下来。

Based on these facts, the properties of films regenerated from new aq. alkali soluble cellulose/NaOH solution with sulfuric acid as coagulator were studied. The structure and morphology of the film was characterized by SEM, and also the influence of coagulator concentration on the film property was studied.

在此基础上，对新型碱可溶纤维素/NaOH水溶液体系在以硫酸水溶液为凝固剂时所成膜的性能进行了研究，采用SEM电镜对膜的结构与形态进行了分析表征，研究了凝固剂浓度对膜性能的影响。

Urea solution, saturated salt water, magnesium sulfate solution and sugar solution were used for floating fluid. Rabbit coccidia oocysts were collected by floating and centrifuging, on which three comparative tests were conducted under same conditions.

利用尿素溶液、饱和食盐水、硫酸镁溶液和砂糖溶液作漂浮液，通过漂浮、离心方法收集兔球虫卵囊，在相同条件下进行3个试验比较。

The third was to compare the effects of the different floating liquids on the growth of the rabbit coccidia oocysts. Magnesium sulfate solution showed the smallest influence rate (4.94%) and saturated salt water (7.47%) had the largest.

其三，不同漂浮液对兔球虫卵囊发育影响作用比较；结果表明硫酸镁溶液影响率最小(4.94%)最大的是饱和食盐水(7.47%)。

The second was to compare the effects of the different floating liquids on the destruction of rabbit coccidia oocysts. The results indicated that magnesium sulfate solution showed the lowest rate of coccidia oocyst destruction at 20 min; saturated salt water had the greatest rate of destruction. The destruction increased with time; in the saturated salt water and urea solution damage or deformation of a few coccidia oocysts at were observed 60 min.

其二，不同漂浮液对兔球虫卵囊破坏作用比较；结果表明20min时硫酸镁溶液对卵囊破坏率最低，破坏率最大的是饱和食盐水，随着时间延长各种破坏作用增大，60min时饱和食盐水和尿素溶液中有极少卵囊破损和卵囊变形现象。

In this paper,the stability of the stannous electrocolouring solution is discussed on the basis of the principle of colloid chemistry.

根据胶体化学原理，讨论了硫酸亚锡电解着色液的稳定性。

Methods:The polysaccharides level was measured by colorimetry and phenol sulfuric acid method with glucose as the standard.

采用苯酚硫酸法，以葡萄糖为对照品，测定总多糖的含量。

Through review of hydrochloric acid, sulfuric acid, the chemical nature of the general out of the common gender , both to enable students to understand the process of awareness of things, but also cultivate their comparison,...

通过复习盐酸、稀硫酸的化学性质概括出酸的通性，既让学生了解人们认识事物的过程，又培养了他们的比较、。。。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷