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The application, proposed hydrotalcite-like compounds as a new type of environmentally friendly solid catalysts in the aldol condensation, nitrile hydrolysis, epoxide ring-opening reaction of the oxidation of aromatic compounds, alcohols oxidation, reduction of nitro compounds, and many other important reactions in organic synthesis has an important application potential, and with little pollution compared to conventional catalysts, easy separation of advantages of high reactivity.

叙述了水滑石类化合物作为固体酸碱催化剂、氧化还原反应催化剂、催化剂载体等方面的应用情况，提出了水滑石类化合物作为一类新型的环境友好的固体催化剂，在醇醛缩合、腈类水解、环氧化物的开环反应、芳烃类化合物的氧化、醇类氧化、硝基化合物的还原等许多重要的有机合成反应具有重要的应用前景，并且与传统催化剂相比具有污染小、易分离、反应活性高等优点。

Wereport the synthesis of an alkyl imidazolium salt supported pyrrolidine amide organocatalyst L-1 and its use and recycling in Aldol condensation reaction.

在这里，我们小组报道了用脯氨酸为原料合成了一种双官能团的离子液体接枝的新型有机催化剂并应用于Aldol缩合反应，它和脯氨酸具有相似的催化作用，可以有效地促进反应的进行。

First, 2 molecules of acetone coordinatedwith aluminum by electrostatic attraction . One atom of hydrogen ofacetone migrated to aluminum because of the pulling of the negativeoxygen of aluminum, and then aldol condensation occured.

该催化反应可以认为是氧化铝分子与两分子丙酮分子发生静电络合作用，然后借助氧原子的负电荷导致脱氢并实现缩合。

According to the exergy analysis theory, thermoeconomic cost distribution method, autonomous optimization principle and exergy pricing method, analyses the exergy efficiency under different evaporation and condensation temperature and calculates the exergy efficiency of typical air supply method in all-air system.

运用分析理论和热经济学中成本分摊法、孤立优化原理和定价方法理论，分析了制冷系统在不同蒸发温度和冷凝温度下的效率，计算了全空气空调系统几种典型送风方式的烟效率。

The distillated condensate of furnace gas showed that NH3 cleaning efficiency will reach to 98% and the recovery rate of CO2 reach to 30% while adoptingMl asabsorber, CO2 in tail gas recovered for carbonation-soda ash production, then ammonia and CO2 are recovered; the condensation of ammonia in waste water is lower than 0.5tt, CO2 is below 0.03tt, so it can be used directly as soft water, then it has decreased the total quantity of various water containing ammonia in soda ash making system and improved environment.

蒸馏炉气冷凝液表明，以M I作为吸收剂，NH_3的净氨率达到98％，CO_2回收率达到30％，尾气中的CO_2再用于碳化制碱，氨和二氧化碳得到回收利用；废淡液中氨的浓度低于0.5tt，CO_2低于0.03tt，可直接作为软水使用，降低了含氨杂水的总量，使纯碱系统不再多余含氨杂水，改善了环境。

We have synthesized 4,4'-dinitro-3 4''-dimethyl triphenylamine,(1), in 84% yield in an one-step condensation process between 3,4-dimethyl aniline and 4-fluoro-nitrobenzene. After the auto-oxidation of (1) and the subsequent hydrogenation of the nitro-groups, an AB2 type triphenylamine polyimide intermediate bearing two amine groups and one acid-anhydride group each on individual phenyl ring,{AB2 PI Intermediate}, was prepared successfully. The yields of the autoxidation and the hydrogenation steps are 81% and 90% respectively.

中文摘要本研究以3，4-二甲苯胺及4-氟硝基苯为原料，经一步骤缩合反应得到产率为84 %之4，4'-二硝基-3&，4&-二甲基三苯胺(1)，由(1)经自氧化法后再以氢化法还原硝基，成功地制备出带有二胺基与一羧基的三官能基之AB2型三苯胺中间体(AB2型PI中间体)，自氧化反应与氢化法的产率各为81%及90%。

Set up the baffle plate for condensation water in tube bundle to reduce and avoid the condensate recooling by lower tube bundle in the falling process of upper tube bundle.

在管束中设置凝结水挡板，以避免和减少上部管束下落的凝结水受到下部管束的再冷却。

Lever Ball Float Steam Traps: Lever Ball Float Steam Traps basic characteristics of the same type of free float, the internal structure is connected float lever driven spool, with the condensation of water level to switch the valve lift.

杠杆浮球式疏水阀：杠杆浮球式疏水阀基本特点与自由浮球式相同，内部结构是浮球连接杠杆带动阀芯，随凝结水的液位升降进行开关阀门。

Lever ball float type steam trap Lever ball float type steam trap basically the same features and free float type, the internal structure is driven leveraged float valve connecting heart, with the condensation of water level down to switch the valve.

杆浮球式疏水阀杆浮球式疏水阀基本特点与自由浮球式相同，内部结构是浮球连接杠杆带动阀心，随凝结水的液位升降进行开关阀门。

The effect of reaction temperature,reaction time,materials ratio on the synthesis of piperidine alcohol benzoate ,hindered amine light stabilizer,from piperidine alcohol and benzoyl chloride by direct condensation were studied,and the proper technological conditions were given as follows:the reaction temperature is 95℃;reaction time is 4 h; the mole ratio of reactants,n∶n is 1∶1.4,the amounts of solvent is 40 mL(based 0.1mol piperidine alcohol),the arerage yield ...

王树清，高崇，苯甲酸哌啶醇酯HALS的合成工艺研究研究了以苯甲酰氯和哌啶醇为原料直接缩合合成苯甲酸哌啶醇酯受阻胺光稳定剂时反应温度、反应时间、原料配比等条件对合成反应的影响，确定了最佳工艺条件。最适宜的工艺条件是：反应温度95℃、反应时间6h、原料摩尔比n∶n为1∶1.4，溶剂用量为70mL(相对于0.1mol哌啶醇)，苯甲酸哌啶醇酯的收率为91.05%，产品纯度98.5%。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。