查询词典 acetic

The molecular structural formula of the rhodamine 6G hydrazide salicylal azomethine is shown on the right, and the present invention discloses the synthesization method of the rhodamine 6G hydrazide salicylal azomethine and rhodamine 6G hydrazide salicylal azomethine solution used for the content determination of a small amount of cupric ions in water sample: 0 percent to 98.99 percent of ethanol, 99.99 percent to 1 percent of acetic acid / sodium acetate buffer solution with the pH value of 5 to 9, in which the total concentration of acetic acid is 1 to 100 millimoles per litre, 0.01 percent of N, N-dimethylformamide and 1ppm to 100ppm of rhodamine 6G hydrazide salicylal azomethine, all measured in mass percentage.

罗丹明6G酰肼水杨醛希弗碱，分子结构式如右，本发明公开了罗丹明6G酰肼水杨醛希弗碱的合成方法及其用于水样中微量铜离子含量测定的溶液：0～98.99％乙醇，99.99～1％pH值5～9的醋酸/醋酸钠缓冲溶液，该缓冲溶液中醋酸总浓度为每升1～100毫摩尔，0.01％N，N-二甲基甲酰胺和1～100ppm罗丹明6G酰肼水杨醛希弗碱，均为质量百分含量。

Hydroxy benzene acetic acid and acetic acid have biological activity, such as anti-bacterial and other aspects, a wide range of applications.

苯羟基乙酸和苯氧乙酸都具有生物活性，在诸如抗菌等方面具有广泛的应用。

Therefore, we started hydroxy benzene acetic acid and acetic acid coordination unit for the nodes of copper, cobalt, cadmium, manganese, zinc coordination polymers of structural chemistry studies.

因此，我们开展了苯羟基乙酸和苯氧乙酸配位单元为节点的铜、钴、镉、锰、锌配位聚合物的结构化学的研究。

objective:study female the yin false wet you of clinical pathology characteristics and discriminate judgment.method:rightness 69example sufferer of clinical and laboratory check the data carry on analysis.result:pcv and small labium seamy side the most familiar(91.3%) skin external appearance with floss form familiar(62.3%) be located on a roe of fish form a time it;(33.33%)organization pathology show the upper part in the ji layer to fill the air a sex net basket a form empty bubble cell kind change;the acetic acid experiment a rate;(97.17%)human milk head lump virus second type examination feminine gender.conclusion:pcvhave a clinical characteristics of show the zhao, acetic acid of experiment hpv examination have importance value towards discriminate analysis.

目的：探讨女阴假性湿疣的临床病理特点及鉴别判断。方法：对69例患者的临床及实验室检查资料进行分析。结果：女阴假性湿疣及小阴唇内侧最为常见(91.3％)皮肤外观以绒毛状常见(62.3％)位于鱼子状次之(33.33％)；组织病理示棘层中上部弥漫性网篮状空泡细胞样改变；醋酸的试验率(97.17％)；人乳头瘤病毒亚型检测阴性。结论：女阴假性湿疣具有显著的临床特点，醋酸的试验hpv检测对鉴别分析有重要价值。

Amino to acetyl phenol, in have technology of two kinds of production domestic and internationally, acetic anhydride craft of the United States, acyl changes temperature to have 75 ℃ only, acyl changes mother liquor not apply mechanically, deputy reaction is little, of production thick tasting is kind of white almost, purificatory craft is very simple, activated carbon dosage only 2~3%, the Kun that its product does not have glow material almost in different third alcohol inferior the sealed impurity of amine impurity and minim, settleclear lightness it may not be a bad idea, the product quality that acetic anhydride craft produces is good, but close rate low, cost is high.

对乙酰氨基酚，在国内外有两种生产工艺，美国的醋酐工艺，酰化温度只有75℃，酰化母液不套用，副反应少，生产的粗品几乎是类白色，精制工艺就非常简单，活性炭用量仅2~3%，其产品在异丙醇中几乎无红光物质的醌亚胺杂质及微量的未知杂质，澄明度也好，醋酐工艺生产的产品质量好，但收率低、成本高。

The single mechanical seals of five PHP pumps, nine PLA pumps, two THD pumps and nine ZA pumps in the acetic acid plant were changed into dual mechanical seals based on not changing main parts such as casing, impeller, shaft, bearings house etc. to solve the leakage problems of flammable, explosive, poisonous, harmful substances, such as acetic acid, methyl iodide, hydroiodic acid, and propionic acid etc.

通过对醋酸装置中所选用的5台PHP型、9台PLA型、2台THD型及9台ZA型单级卧式脚支撑化工离心泵，在不改变泵壳、叶轮、轴、轴承箱等主要部件的基础上，将原来的单端面机械密封改造为双端面机械密封或串联式机械密封，以此来防止所输送的易燃、易爆、有毒、有害高危介质（如醋酸、碘甲烷、碘化氢、丙酸等）外漏。

During the reaction,the bromide component has been converted to catalytically inactive benzylic bromide.In pure acetic acid medium,the "catalyst failure" occurs owing to the formation of benzylic bromide while in acetic acid-water medium,the solvolysis of benzylic bromide by water maintains the catalytic activity to some extent.

反应过程中溴组分会转变为无活性的苄溴，在纯醋酸溶剂中，催化剂会因苄溴的形成而发生催化剂失活现象；在醋酸-水混合溶剂中，由于水对苄溴的溶剂化作用会使苄溴还原为溴离子，一定程度上保持了催化剂活性；并且在一定范围内，含水量的提高有益于生成醛选择性的提高，研究表明，将混合溶剂的初始含水量控制在5-10wt。

Acetic: Wines, no matter how well made, contain quantities of acetic acidity that have a vinegary smell.

醋酸：不管多好的葡萄酒都含有一定量的醋酸，醋酸带有醋的味道。

If there is an excessive amount of acetic acidity, the wine will have a vinegary smell and be a flawed, acetic wine.

葡萄酒中含有的醋酸量不能超出一定的范围，最起码不能让葡萄酒闻着像醋。

The quantitation was monitored with an Inertsil ODS-3V column using a mobile phase of methanol- 0.3%acetic acid = 64:36 for TLM and acetonitrile- methanol - 0.3%acetic = 2:64:34 for Z detector set at 254nm.

对托美丁的分析方法是用Inertsil ODS-3V管柱，移动相则采甲醇： 0.3%醋酸为64： 36 ；而对佐美酸的定量亦用相同管柱，移动相为乙晴：甲醇： 0.3%醋酸为2： 64： 34，UV侦测器则同样设定为254 nm。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。