主要产物

As mentioned earlier, elastinolysiss thought to be an essential component of emphysema.3 This is supported by both pathophysiologic and biochemical investigations, which show reduced lung elastic recoil, disrupted elastic tissue structure, higher circulating levels of elastin peptide breakdown products, and higher levels of desmosine in urine and lung secretions.3 Of the macrophage-derived MMPs identified in emphysematous and COPD tissue, the gelatinases MMP2 and MMP9 are elastinolytic.

正如早些时候提及的，elastinolysiss被认为是肺气肿的主要成份之一。这可以由病理生理研究与生化研究所证实，这两项研究同时提示肺弹性活力的降低，弹性组织结构的断裂，弹力蛋白肽分解产物循环水平的增高，以及尿与肺脏分泌物中锁链素水平的增高。在气肿型或COPD组织中，经确定的巨噬细胞源性的金属蛋白酶中，elastinoly的MMP2与 MMP9是elastinolytic。

The main endogenetic modulating factors are apoptosis-related genes and their products.

凋亡的内源性调控因素主要是凋亡相关基因及其产物。

There are three main viewpoints in this paper: First, the split of shares is the endogenetic product from gradual reform strategy and the situation of financial resource endowment.

其主要命题和观点有三：第一，股权分置并不像大多数学者所认为的是当时市场经济与计划经济相互妥协的外生产物。

The results of in situ DRIFTS on propylene oxidation show that the allyl species originated from α-H abstraction of propylene were located at the wavenumbers of 1454 cm~(-1) and 1427 cm~(-1). The rate-determining step is the abstraction of an α-H abstraction from a lattice oxygen linked to a bismuth ion to form a π-allyl intermediate coordinated to a molybdenum ion. The metal-oxo group then attacks the allyl intermediate forming a σ-bonded oxygen-allyl species, which is in a rapid equilibrium with the π- bonded species. The σ-bonded species then transforms to acrolein by further abstraction of α-H. Such species as formate, carboxylate, carbonate transform to deep oxidation products. The acetone was derived from propylene by an enolic species at lower temperatures.

丙烯氧化反应体系的原位漫反射红外光谱研究结果表明，由丙烯脱氢生成的烯丙基中间物种吸收峰在1454cm~(-1)和1427cm~(-1)处；基于此提出了较完整的丙烯氧化反应网络：丙烯选择氧化生成丙烯醛主要经历丙烯脱除甲基上的一个H，生成烯丙基物种，该物种嵌氧生成σ-O络合物，脱氢得到丙烯醛前驱体，脱附生成丙烯醛；完全氧化产物是由催化剂表面上生成甲酸盐、羧酸盐、碳酸盐等形式的中间物种转化而成；较低反应温度下丙烯氧化生成丙酮，通过烯醇式中间物种氧化生成丙酮前驱体得到。

The main enzymolytic products from the reaction of VS on torpedo acetylcholinsterase were studied by means of GC-MS.

本文用气相色谱及气相色谱-质谱联用的方法，对VS与电鳐乙酰胆碱酯酶固相酶作用后其含硫、氮部份的主要酶解产物进行了分析鉴定。

The interaction between multiphase liquid in boundary layer within pipe wall and the damage of protective erodent products film is analyzed.

针对异径管的冲蚀失效问题，以管壁腐蚀产物保护膜为研究对象，主要研究流固耦合对管道冲蚀破坏的作用机理。

The function of adenosine is the most important. H+,CO2, ethylidene lactic acid 、BK、PGE also can dilate coronary.

心肌局部代谢产物是导致冠脉扩张的主要因素，其中腺苷作用最为重要。H+、CO2、乳酸、BK、PGE等亦可舒张冠脉。

Min and 40℃/min, both TG-DSC-T curves have an affinity part, emerging out the clear peak of exothermal reaction.

气体产物的含量和数量的变化主要取决于热解反应的升温速度和炉内的停留时间。

The main metabolites in each reactor were detected by UV/VIS, infrared and high performance liquid chromatography and mass spectrometry. Probably, the mother dye molecule facultatively hydrolyzed to produce 1-NH2-2-hydroxy anthraquinon, OH-substituted anthraquinon and 3,4-dihydroxy-benzonic acid.

对各反应器中主要的代谢产物分别进行紫外-可见、红外和高效液相色-质联谱仪检测分析后发现，母体染料经兼氧水解首先生成1-氨基-2-羟基蒽醌以及还原态的—OH基取代蒽醌隐色体，进一步水解生成3，4-二羟基苯甲酸。

This catalyst was applied for the liquid phase oxidation of glyoxal to glyoxylic acid.

研究结果表明，V_2O_5/C催化剂对乙二醛的氧化具有良好的催化活性和乙醛酸选择性，反应过程中无需控制溶液pH值即可得到乙醛酸，乙醛酸在V_2O_5/C催化剂作用下不存在过度氧化，乙二醛的氧化产物主要是甲酸和乙醛酸，它们是一平行反应。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。