查询词典 reaction

With solid state synthesis method,the expression of rate of reaction is detected and order of reaction and activation energy are defined.

本文通过固相合成的方法，对反应速率进行了测定，确定其反应的反应级数和活化能分别为4。

The optimum conditions of acyl chlorination and esterification were investigated as follows: molar ratio of DPR to PCl3 1∶0.33, reaction temperature 50℃ and reaction time 3 h.

实验结果表明：温度对于DPR酰氯化反应的影响较小；而原料物质的量之比对反应程度的影响较大，PCl3用量的增加有利于反应程度的增加。

It was demonstrated that addition of CO2 in the reaction system could increase the reaction rate significantly.

结果表明，反应速率随着CO2压力的增加大幅度提高。

The influence of different substituents to the addition reaction also has been investigated to research into the reaction law.

优化得到各驻点的几何构型，通过振动分析和内禀反应坐标对过渡态进行了确认，解析了反应路径。

Addition reaction is an organic reaction , it occurs in a double bond or triple bond of the substance.

加成反应是一种有机化学反应，它发生在有双键或叁键的物质中。

The optimal conditions were found as follows: reaction temperature 90℃, reaction time 50 min, the molar ratio of catalyst to diethyl adipate 1.1:1, providing 99.5% yield.

结果表明，各试验因素的影响效能为反应温度（反应时间（催化剂用量；最佳合成条件为反应温度90℃，反应时间50 min，催化剂与原料的摩尔比为1.1：1，在此条件下，常压合成目标物的产率可以达到99.5%。

Di-2-ethylhexyl adipate was synthesized with complex solid super acid SO(superscript 2- subscript 4)/ZrO2-TiO2 as catalyst. Effects of catalyst dosage, molar ratio of adipic acid to 2-ethyl hexanol, reaction temperature on reaction were studied.

以复合固体超强酸SO(上标 2-下标 4)/ZrO2-TiO2为催化剂合成了己二酸二（2-乙基）己酯，考察了催化剂用量、酸醇投料比和反应温度对反应的影响。

It has been detected in a wide range of aerobe. The decomposition of hydrogen peroxide catalyzed by catalase is a bi- substrate enzyme-catalyzed reaction. As Chance proposed, it is an overall first-order reaction.

过氧化氢酶催化过氧化氢分解是一个两底物酶促反应，依照Chance提出的机理，反应速率方程具有一级反应方程的形式。

It also is related to bone marrow structural damage resulting from tumor invasion,large proliferation of granulation or fibrous tissue,which often affect hemopoiesis.Leukemoid reaction occurred in the majority of malignancies is myeloid leukemia response,among which some are.neutropenia,and even agranulocytosis and increasion or decreasion of platelets.These are all have close relationship with marrow invasion of malignant tumor,immune reaction of the body and chemotherapy as well as radiotherapy.

亦与骨髓被恶性肿瘤细胞浸润、肉芽和纤维组织大量增生，使骨髓结构破坏，影响红系造血有关；绝大多数恶性肿瘤并发的类白血病反应是粒细胞性的，部分患者白细胞减少，甚至粒细胞缺乏，以及血小板增高或减少，均与恶性肿瘤细胞骨髓浸润、机体的免疫反应、放化疗有关。

The invention provides an anhydrous hydrogen fluoride production process; reaction raw materials fluorite powder and sulfate are mixed by an external mixer and enter into a converter with jacket; hot air with the temperature of 350 DEG C to 600 DEG C is fed in the jacket; the fluorite powder and the sulfate have chemical reaction and produce hydrogen fluoride; the produced hydrogen fluoride enters into a scrubber from a furnace header to be washed; the washed hydrogen fluoride enters into an intermediate tank from a condenser, and then receives distillation and degasification to prepare the finished product anhydrous hydrogen fluoride; solid residue is emitted from a furnace tail.

本发明提供一种无水氟化氢生产工艺，反应原料萤石粉及硫酸经外混器混合后进入带有夹套的转炉，向夹套内通入350～600℃的热风，萤石粉和硫酸在发生化学反应生成氟化氢，生成的氟化氢气体由炉头进入洗涤塔进行洗涤，洗涤后的氟化氢由冷凝器进入中间槽，然后经过精馏、脱气制得成品无水氟化氢；固体残渣由炉尾排出。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新