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The kinetics of polycondensation of aralkyl ethers such as p-di(methoxy) xylene and ,/-di(methoxymethyl) diphenyl ether with ten kinds of aro-matics has been studied in the presence of catalysts for Friedel-Crafts reaction.
中文意思:
本文研究了芳烷基醚与芳香族化合物在Friedel-Crafts反应型催化剂作用下缩聚反应动力学.


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The key to success was safety incisal margin. 手术关键是保存有足够的安全切缘 ,严格掌握适应证和术中的准确操作。
The kiddding rate was higher than 80? % for 9 ? % of the donors,and the kidding rate was lower than 0? 有9 %的供体胚胎移植成羔率大于80%,有 %的供体胚胎移植成羔率小于0%。
The kinematic state space representation and its corresponding control equation of the ice skater robot were presented. 设计了溜冰机器人运动学状态空间表达式和运动学控制方程 .
The kinetic constants also changed much. For the immobilized and free lactase, Km, Vmax were 0.7 mol/L, .μmol/ min·mL and 0.7 mol/L, .7μmol/ min·mL. 固定化后与游离酶比较,动力学常数也有显著变化,Km和Vmax分别为0.7 mol/L, .μmol/ min·mL和0.7 mol/L, .7μmol/ min·mL。
The kinetics of hydrodesulfurization (HDS) of dibenzothiophene (DBT) over Ni-Mo/MCM- catalyst was investigated on a trickle bed reactor at WHSV = 0~90 h -, p= 0 MPa and θ=80~ 0 ℃. 采用高压滴流床反应器研究了在WHSV = 0~ 90h-,p = 0MPa和θ= 80~ 0℃的条件下 ,二苯并噻吩 (DBT)在不同Ni含量的Ni Mo/MCM 催化剂样品上的加氢脱硫 (HDS)反应动力学 .
The kinetics of polycondensation of aralkyl ethers such as p-di(methoxy) xylene and ,/-di(methoxymethyl) diphenyl ether with ten kinds of aro-matics has been studied in the presence of catalysts for Friedel-Crafts reaction. 本文研究了芳烷基醚与芳香族化合物在Friedel-Crafts反应型催化剂作用下缩聚反应动力学.
The knowledge of CORBA relative to the Marshal/Demarshal(mainly focus on the GIOP and CDR) is introduced, and the optimization of marshal/ demarshal is pointed out following by analysis and comparison of Orbacus and TAO。 简单介绍了Marshal/demarshal涉及到的CORBA相关知识(主要是GIOP和公共数据表示),然后分析和比较了Or鄄bacus和TAO中marshal/demarshal的实现,指出了中间件中marshal/demarshal优化的要点。
The laccase activity of transformant GSb with lacB reached .×0~U/L after -day culture and the laccase activity of transformant GSc with lacC reached .×0~ U/L after 9-day cell growth. lacB的转化子GSb在第 天酶活达到 .×0~U/L,lacC的转化子GSc发酵9天的酶活为.x0~U/L。
The lack of knowledge on this aspect will mislead users of accounting information. 这将使会计信息使用者不能了解企业资本存量的质量结构、导致会计信息使用者的决策失误。
The lacteal output each time was (.± .)ml,(0.7±.)ml and (9.0±.0)ml respectively in the groups. 乳汁排出量:实验组为(.± .)ml/次,实验组为(0.7±.)ml/次,对照组为(9.0±.0)ml/次。
The lamellar system and osmiophilic globuli had disappeared,butthere was abundon stored starch in the plastid. 质体已无片层结构和嗜锇小球,但常有大量的贮藏淀粉。
 
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