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Reaction of synthesizing polyester commonly including three parts: esterify reaction, early polycondensation and sequel polycondensation. This paper only discusses two of them: esterify reaction and sequel polycondensation.

合成聚酯的反应一般分为三个部分进行：酯化反应部分、预缩聚部分和终缩聚部分，本文对酯化部分和终缩聚两个部分进行研究。

To improve the selectivity, the Co/Mn/Br catalyst system with ethanal as an additive was studied and the reaction conditions were also optimized, which were as follows:the amount of ethanal 10%(mole ration base on the substrate), reaction temperature 100℃,reaction time 30min,the oxygen pressure 0.2MPa, the amount of the composite catalyst Co/Mn/Br 7%,the mass ration of different ingredients 2:2:1. Under these conditions, the yield comes to 24.10% and the selectivity reaches 75.03%.

为了提高反应的选择性，论文初步研究了以乙醛作为添加剂条件下各工艺参数的影响，并进行正交优化，得出最佳条件为：乙醛加入量1：10，反应温度100℃，反应时间30min，氧气压力0.2MPa， Co/Mn/Br混合催化剂加入量7%，质量比2：2：1，在此条件下，反应产率为24.10%，选择性可达75.03%。

The expressions of current density and the Faradaic Impedance for the three-step electrode processes involving chemical adsorption,charge transfer and desorption steps in the presence or absence of a chemical competitive reaction have been derived in terms of linear condition in this paper,by which the effect of the chemical competitive reaction on the main reaction was analyzed.

在线性条件下，推导了由化学吸附、电荷传递、化学脱附三步骤的电极过程在有化学竞争反应条件下的电流密度和法拉第阻抗的表达式，分析了不同条件下化学竞争反应对主反应的影响，并使用等效电路对可能出现的阻抗结果进行了理论描述。

Skin stimulation test and implantation in vivo found no abscess and fistule formation. Histological section showed there was moderate inflammatory reaction of forign object exciation at the early stage of implantation. At the intermediate stage, inflammatory cells decreased, mainly including lymphocytes, and there was little inflammatory reaction and antigen reaction. Meanwhile, SIS degraded sequently. At 12 weeks, SIS was almost completely degraded and absorbed.

皮肤刺激试验和体内植入研究发现，无脓肿及瘘管形成，组织切片发现SIS植入后组织反应在早期呈现出异物刺激引起轻中度炎性反应，中期时炎症细胞减少，以淋巴细胞为主，炎症反应和抗原反应都较小，同时进行程序性的降解。12周时SIS几乎完全降解吸收。

The influence of the Vilsmeier formylation reaction, the immediate Grignard reaction, the mediate Grignard reaction and the solvents on the synthesis of 2,8-diformyldibenzhothiophene was also investigated.

探索了Vilsmeier甲酰化、直接格氏试剂法、间接格氏试剂法以及溶剂对合成2，8-二甲酰基二苯并噻吩的影响。

The volume ratio of furaldehyde to acetic anhydride is 1∶2; the mole ratio of furaldehyde with anhydrous potassium carbonate is 1.00∶0.54. The best phase transfer catalyst is PEG1000, the mass ratio of PEG1000 with furaldehyde is 4.3%, the reaction time is 11 min, the reaction power of microwave is 260 W. The yield ofα-furanacrylicacid is up to 72.3% under these reaction conditions.

研究结果表明：在微波辐射功率为260 W、微波反应时间为11 min、以聚乙二醇1 000(PEG1000)为相转移催化剂，糠醛与乙酐的体积比为1∶2，糠醛与无水碳酸钾的量比为1.00∶0.55时，α-呋喃丙烯酸的产率为72.3%。

The results showed that the reaction activity between glycinin (7S subunit) and maltodextrin was high, and the reaction proceeds quantitatively regardless of the variation of protein and polysaccharide mass ratio. The molecular properties of the formed conjugates are also highly uniform. The reaction activity between β-conglycinin (11S subunit) and maltodextrin is relatively lower Compared to that of glycinin, and the molecular properties of these conjugates are affected by the variation of the R values.

电泳分析表明：7S亚基与麦芽糊精的反应性较高，而且在文中所研究的蛋白质与多糖质量比的范围内，7S亚基都能与麦芽糊精发生定量的共聚合反应，形成分子特性高度一致的共聚物；而11S亚基与麦芽糊精间的反应性较低，共聚物的分子特性受蛋白质与多糖质量比的影响。

The process does not depends on catalytic hydrogenization method, has simple reaction condition, high reactant yield all over 75%, can use TLC to track the whole reaction process, and is more suitable to the transformation of function group in the organic synthesis field as the result of N-Boc or N-Cbz derivative is easy to loss protective reaction, which has spreading application prospect.

该方法不依赖于催化氢化方法，反应条件简单，反应产物产率高，均在75％以上，反应过程可用TLC进行跟踪，且由于N-Boc或N-Cbz衍生物更易发生去保护反应，在有机合成领域更适宜于官能团的转化，具有广阔的应用前景。

In addition, ioding was found to be an efficient catalyst for the imino Diels-Alder reaction of N-arylimine and enol ethers and the reaction provided tertrahydroqinolines in good yields. One pot synthesis of tetrahydroqinolines from aldehyde, aniline and enol ethers was also achieved using iodine as the catalyst. The chemical yield of the"one pot"reaction was comparable with that obtained using preformed N-arylimine.

此外我们也发现碘能够有效地催化N-芳基亚胺与烯醇醚的Diels-Alder反应，以很高的化学收率得到了四氢喹啉衍生物，并且发现碘也能够直接催化芳香醛、苯胺、烯醇醚的三组分&一锅&反应，获得的化学产率与使用预制的N-芳基亚胺相当。

The effect of reaction, mixing and temperature on reaction rate in the space of instantaneous reaction rate -unreacted main reactant was studied using retention time as an objective, and a new strategy for the synthesis of reactor networks was presented under steady state, isochoric and non-isothermal anditions.

本研究以反应器系统为对象，以停留时间为目标，针对稳态、恒容、非等温条件下的化学反应过程，在瞬时反应速率 r和关键反应物的未转化率x空间探讨了反应、混合、温度对反应速率的影响，提出了在r x空间非等温反应器网络综合的新策略。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。