查询词典 acid-carbonate

Grafting of crotonic acid, undecylenic acid, oleic acid, and acrylic acid onto ABS was initiated by benzoyl peroxide in 1, 2-dichloroethane solution.

以过氧化二苯甲酰为引发剂，在1，2-二氯乙烷溶液中进行反式丁烯酸、10-十一烯酸、油酸、丙烯酸接枝ABS树脂。

Results show that ascorbic acid and dehydroascorbic acid of cloudy strawberry juice in the storage process are unstable to the heat treatment; the degradation of ascorbic acid and dehydroascorbic acid accords with first-order dynamic, which indicates that this degeneration dynamic model is logical and effective, and can be used in selection of storing temperature and prediction of storage period at different temperatures.

结果表明：草莓浑浊汁在贮藏过程中还原型维生素C和氧化型维生素C对热不稳定，还原型维生素C和氧化型维生素C降解符合一级反应动力学。经过验证表明该降解动力学模型有效，可用于草莓浑浊汁贮藏温度的选择和预测不同温度下的贮藏期。

The relationiships among storage temperature, storage time and degradation of ascorbic acid and dehyd roascorbic acid in the process of cloudy strawberry juice storage were analyzed, and the degradadion dynamic model of ascorbic acid and dehydroascorbic acid was established.

该文通过研究草莓浑浊汁贮藏过程中还原型维生素C和氧化型维生素C的降解与贮藏温度、贮藏时间的关系，建立了还原型维生素C和氧化型维生素C降解动力学模型。

Optimal process conditions for preparing 2-oxo-1-piperazine acetic acid: N,N'-ethylenediamine diacetic acid with hydrochloric acid at a mole ratio of 1 to 2.6 ,was cyclized to form 2-oxo-1-piperazine acetic acid by refluxing for 8 hours.

通过单因素分析，合成S-KP 的最佳反应条件为：在沸腾状态下，回流8小时，HCl∶S-EDDA 的摩尔比为2.6∶1。

The results show that complexing agent greatly effects on film's density. For the double complexing agents solution system based on citric acid, the solution with lactic acid and citric acid produced most compact film with lowest porosity; and for the double complexing agents solution system based on butane diacid, the solution with butane diacid and malic acid made most compact film with lowest porosity.

研究结果表明：络合剂对镀层的致密度影响显著，对于以柠檬酸为基的双络合剂体系镀液来讲，乳酸-柠檬酸双络合剂体系镀液获得的镀层致密度最好，具有最低的气孔率；而对于以丁二酸为基的双络合剂体系镀液来讲，丁二酸-苹果酸双络合剂体系镀液获得的镀层致密度最好，具有最低的气孔率。

The silk-protein-like polymers could be dissolved in hexafluroisopropanol and strong organic acid (e. g., formic acid, dichloroacetic acid and trifluroacetic acid), while they showed a poor solubility in common solvents.

所合成的模拟聚合物难溶于通常溶剂，但可以溶解在强酸溶剂（甲酸、二氯乙酸及三氟乙酸）和六氟异丙醇中；通过在二氯乙酸中25℃下的特性粘度测定而估算出聚合物的分子量在2～5万之间。

The oxidation of p-nitrotoluene-2-sulfonic acid to prepare 4, 4'-dinitrostilbene-2, 2'-disulfonic acid was monitored, and the mechanism for the formation of by-products 4-nitrobenzaldehyde-2-sulfonic acid and 4-nitro-2-sulfobenzonic acid was suggested.

跟踪了对硝基甲苯邻磺酸制备4，4'-二硝基二苯乙烯－2，2'-二磺酸的过程，推测了4-硝基苯甲醛2-磺酸钠与4-硝基苯甲酸2-磺酸钠杂质的生成机理。

The adsorption properties of 2-naphthalenesulfonic acid, p-tuluenesulfonic acid, p-chlorobenesulfonic acid and 4, 4'-dinitrostilibene-2, 2'-disulfonic acid onto the macroporous weak base anion-exchange resins were investigated. The influence of pH, salt and temperature on the adsorption equilibrium was also studied.

本论文以芳香磺酸化合物为研究对象，系统地研究了大孔弱碱性阴离子交换树脂对其的吸附行为，考察了温度、pH值、盐含量等因素对树脂吸附性能的影响。

The glyoxalic acid and oxalic acid in electrosynthesis of glyoxalic acid from oxalic acid was determined by reversed-phase high performance liquid chromatography,this method is simple,low cost and high performance.

采用高效液相色谱法测定了草酸电合成乙醛酸中乙醛酸和草酸的含量，方法简便，成本低廉，效果良好。

The methods of preserving eleostearic acid were studied, adopting content of eleostearic acid as index. Eleostearic acid was esterificated with BF3 in methanol. The content of eleostearic acid was determined by gas chromatography, and the structure is studied by infrared spectroscopy.

初步研究了桐油酸的保存方法，以α-桐油酸含量为指标，将桐油酸与三氟化硼－甲醇溶液进行甲醋化，采用气相色语法检测桐油酸含量，并用红外光语扫描结构。

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。