该词条未找到_海词词典

您要查找的是不是：

Keywords Non-aqueous titration;Dimethylallylamine;Glacial acetic acid;Mixed acylating agent;Hyperchloric acid-acetic acid mixture as standard titrant;Crystal violet; 非水滴定;二甲基烯丙基胺;冰乙酸;甲酸-乙酸酐混合酰化剂;高氯酸-冰乙酸标准液;结晶紫;
Mixed acylating agent 高氯酸-冰乙酸标准液
One advisable way is to synthesize NFM by acylating morpholine with formic acid as acylating agent. 较可取的是以甲酸为酰化剂，吗啉酰化初期强放热反应，该类反应安全操作条件是安全生产的关键。
The propionyl chloride was found to be the appropriate acylating agent in terms of the cost. 通过成本比较,认为丙酰氯是合适的酰化剂。
Compared the methods,it is found that the routes using acyl chloride as acylating agent was the best one,which having high yield,low cost,and fitting industrial production. 通过比较,确定以酰氯为酰化剂的合成方法产率较高,成本低,适合工业化生产。
The influences of reaction temperature, reaction time, acylating agent dosage and the concentration of cellulose on degree of substitution of the products were investigated. 探讨反应温度、反应时间、酰化剂用量以及纤维素浓度对反应产物取代度的影响。
With konjac as the raw material, acetic anhydride as dispersant and acylating agent, sodium acetic as catalyzer, the preparation technique of water-soluble high molecular weight konjac glucomannan acetate was studied under neutral, anhydrous conditions. 研究了以魔芋胶为原料,乙酸酐为分散剂和酰化剂,无水乙酸钠为催化剂,在中性无水条件下制备水溶性高分子魔芋葡甘聚糖醋酸酯的方法。
It was confirmed that the synthesis of lipoylbenzotriazole was successful by its modification reaction with insulin, and lipoylbenzotriazole showed a high reaction activity as an acylating agent. 通过考察硫辛酰苯并三唑对胰岛素的化学修饰作用，进一步证明了它的合成是成功的，并且对胰岛素的侧链氨基呈现较高的修饰反应活性。
The results show the relative reactivities of three second hydroxyl groups on steroids skeleton of methyl cholicate are different to the three kinds of acylating agents. 结果显示，与三种活性不同的酰化试剂作用时，胆酸甲酯分子甾体骨架上三个仲羟基的相对反应活性不同。
WT5"BZ]Diindanone dibenzo 24 Crown 8 has been synthesized. on the conditions of polyphosphoric acid(PPA) as catalyst and solvent,acrylic acid as acylating agent,dibenzo 24 crown 8 being acylated. 以多聚磷酸 (PPA)为催化剂和反应溶剂 ,丙烯酸为酰化剂 ,对二苯并 -2 4 -冠 -8进行酰化 ,成功地合成了双茚满酮型二苯并 -2 4 -冠 -8。
WT5”BZ]Diindanone dibenzo 24 Crown 8 has been synthesized. on the conditions of polyphosphoric acid(PPA) as catalyst and solvent,acrylic acid as acylating agent,dibenzo 24 crown 8 being acylated. 以多聚磷酸(PPA)为催化剂和反应溶剂,丙烯酸为酰化剂,对二苯并-24-冠-8进行酰化,成功地合成了双茚满酮型二苯并-24-冠-8。收藏指正
Don't mix up this pair of synonyms. 别把这两个近义词混淆了。
He has mixed with crowd together but has not found. 他已同人群混杂在一起而找不到了。
He finds it hard to mix at parties. 他感到很难在聚会上与人攀谈。
The competition entries were a very mixed bag. 参赛者是错落不齐的大杂烩。
The old man decided not to mix in politics. 那位老人决定不参与政治。
I booked my holiday through my local travel agent. 我是由本地的旅游代理人预先安排的度假事宜。
Pink and blue mix well together. 粉色和蓝色在一起很协调。
Put the mixed historical facts in sequence. 将混淆的历史事件按顺序排列。
First, ore is mixed with coke and limestone. 先把铁矿石和焦碳、石灰石混合在一起。