醋的

Based on the problem of various types of catalyst and according to the features of carbonylation catalysts reactions, our team has been designed a series of new metal complexes of benimidazoles, which can be used for carbonylation catalyst of industry. Seven new benzimidazole derivatives were prepared by the o-phenylenediamine、oxalic acid、glycolic acid、monomethyl monopotassium malonate、ethyl cyanoacetate、succinic anhydride. The structures of them were confirmed by IR、Elemental analsis. The crystal structures of d and e were determined by X-ray single crystal diffraction of Germanic Bruker Smart APEX II CCD. The catalysis of them was tested by carbonylation reactions.

本文设计以邻苯二胺和草酸、羟基乙酸、丙二酸单甲酯、氰基乙酸乙酯、丁二酸单甲酯为原料采用PPA催化和无机酸催化法，合成了4种苯并咪唑-2-羧酸衍生物并进行了表征；培养了2个化合物d、e的晶体并测定和讨论了晶体结构；制备了3种未见报道的苯并咪唑金属配合物，对配合物在羰基化法制醋酐-醋酸反应的催化作用进行了初步试验。

In this research, we used Trifluoroacetic anhydride as a derivatizing agent to esterify the trace glycerol in biodiesel, followed by the determination of trace glycerol using microwave assisted headspace SPME extraction technique combined with GC-ECD.

本研究利用三氟醋酸酐与生质柴油中的微量甘油进行酯化反应，反应后的衍生物以本实验室开发的微波辅助顶空固相微萃取装置采样，并以气相层析仪搭配电子捕捉侦测器作分析。

The result makes clear, different dilute is the gemmiparous rate of fluid of vinegar of pH indicator wood and corn seed, gemmiparous index, gemmiparous situation existence is remarkable 3 curves correlativity, as long as emerge seedling presence is more remarkable 3 times the curve concerns, to sprouting time is reached orderly degree of influence with also have certain.

结果表明，不同稀释浓度的木醋液和玉米种子的发芽率、发芽指数、发芽势存在显著三次曲线相关关系，和出苗苗长存在较显著三次曲线关系，对出芽时间及整洁度也有一定的影响。

The synthetic route of glycidyl nitrate was improved. Glycidol was synthesized by the cyclization process from allyl alcohol and m-CPBA, then glycidyl nitrate was synthesized with glycidol as raw materials and HNO3/ 2O as nitrating agent.

为了改进缩水甘油醚硝酸酯的合成路线，以丙烯醇为原料，经间氯过苯甲酸环氧化后得到缩水甘油醇，然后GA经硝酸／醋酐硝化后得到了GN，硝化产物GN的收率为70.2%，经过减压精馏后GN的纯度达到了98.9%。

A drug,C14H19NO2,chemically related to amphetamine,that acts as a mild stimulant of the central nervous system and is used especially in the form of its hydrochloride for the treatment of narcolepsy in adults and hyperkinetic disorders in children.

哌醋甲酯一种药，C14H19NO2，与苯丙胺有化学上的联系，用作中枢神经系统弱兴奋剂，尤其以其氢氯化物形式来治疗成人的发作性睡眠病和儿童的运动功能亢进失调

It showed that, compared with other catalysts, SO(superscript 2- subscript 4)/TiO2-ZrO2 was more active to bring about more than 95% conversion rate of stillingia oil under the transesterification conditions of 150℃, molar ratio of methanol to oil 12:1, catalyst amount 5% and reaction time 6h.

结果表明，催化剂SO(上标 2-下标 4)/TiO2-ZrO2表现出了较高的催化活性，SO(上标 2-下标 4)/TiO2-ZrO2催化的最佳酯交换反应条件为：反应温度150℃，醇油摩尔比12：1，催化剂用量5%，反应时间6h，此时乌桕籽油的醋化率超过95%，且催化剂重复和再生使用效果良好。

This article from is various,multi-level,after discussed front the fluid the solid zymotechnics to ferment the main reason which the vinegar summer reduced production,has formulated the corresponding preventing and controlling measure,and has obtained the ideal effect.

从多方面、多层次，探讨了前液后固发酵法酿醋夏季减产的主要原因，制定了相应的防治措施，并取得了理想的效果。

At the same time, but in order to field a hare Wei and small rabbit shopping to buy a dry shirt and suck up the vinegar, just as much over the rabbit, all of a sudden news broadcast around the world on more than 80 children The early morning of strange disappearances reported.

与此同时月野兔却为了地场卫和小小兔购物时买的一件衬衫而大吃干醋，正当小兔闹得不可开交的时候，新闻中突然播出了有关全世界80多个孩子凌晨离奇失踪事件的报道。

The effect of the special monomers on the properties of the emulsion was studied. The results showed that when the amount of GMA was 4.4% and the amount of actyflon was 1.0% of the monomers, salt spray resistance of the emulsion, could be up to 240 h without rust spots and babbles.

结果表明，当环氧单体甲基丙烯酸缩水甘油醋用量为总单体用量的4.4%，含氟单体用量为总单体用量的1.0%时，能够显著提高乳液的交联度和疏水性，乳液成膜后进行中性盐雾实验，中性盐雾时间可达到240h，板面无锈点，主体无起泡。

Until that day, you can often get the wrinkles out of clothes after drying by misting them with a solution of 1 part vinegar to 3 parts water.

有一天，当你用比例为1：3的醋水溶液对洗好的衣物进行喷洒，你就会发现自己也可以轻易地将衣物上的褶皱除掉。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。