查询词典 acetic aldehyde

One pot synthesis of tetrahydroquinolines from aldehyde, aniline and enol ethers catalyzed by iodine was also applicable and provided tetrahydroquinolines in comparable yields.

在碘的催化下，从醛、苯胺和烯醇醚出发"一锅"合成了四氢喹啉衍生物，反应的产率与使用预制的亚胺进行的反应基本相同。

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。

Since the aldehyde groups can be reversibly converted into enol groups depending on acidity and alkalescence of environment, the inter-and intra-molecule interaction of CMDA can be adjusted by changing the pH of medium, as a result, the self-assembly behavior of CMDA may be altered.

结果表明，CMDA在水中自组装形成纳米自聚集体，在pH=4.0和pH=10.83溶液中CMDA的临界聚集量浓度值分别为0.002mg／mL和0.005mg／mL，比中性环境中的临界聚集量浓度（0.02mg／mL）低了1个数量级。3种pH条件下自聚集体溶液表面张力具有共同的变化趋势，但在酸性与碱性条件下具有更好的表面活性。

It showed that main constituents are linalool, geraniol, farnesol , safrole, citral, t-anethole , decanal and lauric aldehyde respectively and with high cont.

从它们的利用部位花、果、叶和根中，可提取芳香油，主要成分分别为芳樟醇、香叶醇、金合欢醇、黄樟素、柠檬醛、茴香醚及癸醛、十二碳醛等，含量相当高，为重要调香原料，有的作药用，颇具发展种植和开发利用价值。

Methods Immunohistochemical method with two specific antibodies(MMP-9,CD68) was used to detect the their special antigens in lung tissues of six cases who died of SARS and five normal cases as the controls.Gomori aldehyde fuchsine staining method was used to explore the change of elastic fiber.Motic advanced 4.0 image analysis system was used to analyze those images.

方法通过免疫组织化学技术对6例SARS死亡患者肺和5例肺外伤患者手术切除的正常肺组织中MMP-9和CD68+细胞进行检测，Gomori醛品红法显示弹性纤维，应用Motic Advanced 4.0图像分析系统进行定量分析，测定MMP-9的面密度、CD68+细胞的数量、弹性纤维的含量，并与正常对照组进行比较。

Being better than high quality edible alcohol and produced by mordern scientific technologies, high pure alcohol, with specific properties of its smell, physical and chemical quality index, and content of fusel oil,aldehyde group and ester group, is widely used in liquor-making industry.

1高纯度酒精的定名高纯度酒精的名称已在我国酒精和酿酒行业流行，但我国现行的酒精标准中，尚没有高纯度酒精这个等级，酒精企业中，产品质量达到高纯度酒精标准的也为数不多，高纯度酒精的名称是自发地叫起来的。

Being better than high quality edible alcohol and produced by mordern scientific technologies, high pure alcohol, with specific properties of its smell, physical and chemical quality index, and content of fusel oil,aldehyde group and ester group, is widely used in liquor－making industry.

摘 要：超过优级的食用酒精称之为高纯度酒精，对其气味、含杂醇油、醛类和酯类等感官和理化质量指标都有特殊要求，其生产制作需要现代科学手段。

Liquor ; aldehyde ; fusel oil ; acid ester balance

白酒；乙醛；杂醇油；酸酯平衡

Methods: 60 freshly extracted , single-rooted premolars were randomly divided into two experimental groups (cinnamic aldehyde, gallnut decoction) and four control group (FC group, calcium hydroxide mixed with propylene glycol group, negative the control group and positive control group),.

选取60颗新鲜拔除的单根管前磨牙，随机分为2个实验组和4个对照组（ FC 组、氢氧化钙丙二醇糊剂组、阴性对照组和阳性对照组），每组10颗牙。

The method uses CCl4 revulsive small rat liver injures a model, medicaments is preventive experiment, through determining transaminase of serum cereal third , millet straw and liver organization third 2 aldehyde content, yellow purine oxidizes peptide of pleasant of Guang of enzymatic, cereal is reductive enzymatic active and liver tectology change are index, observation grackle extracts the protective effect that content injures to liver.

方法采用CCl4诱导小鼠肝损伤模型，药物预防性实验，通过测定血清谷丙转氨酶、谷草转氨酶和肝组织丙二醛含量、黄嘌呤氧化酶、谷胱甘肽还原酶活性以及肝组织形态学变化为指标，观察白头翁提取物对肝损伤的保护功能。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。