查询词典 acrylic aldehyde

The aldehyde solution was then cooled to 0℃ by an external ice bath.

由外面的冰浴将这种醛的溶液冷却到0℃。

The synthetic methods of peptide thioester and peptide aldehyde are also discussed.

还介绍了与多肽片段连接有关的肽硫酯和肽醛的合成方法。

It is classified as an aldose, a designation for sugars containing an aldehyde group.

它被划分为醛糖，含醛基的糖。

The method of 4-methylimidazole synthesis using pyroracemic aldehyde was selected,and flow chart and operation process were studied.

本文对4-甲基咪唑常用的几种合成方法进行了介绍，对其工业化生产的优缺点进行了对比，最终选定了丙酮醛法，并给出了工艺流程图和操作步骤。

The aldehyde elimination step was predicted to be irreversible.

醛的还原消除步骤是不可逆的。

As the caprylic aldehyde content increased,strain at break and tensile strength were decreased.

拉伸强度和断裂伸长率均随辛醛含量的增加而降低。

Objective To investigate the synthesis methods Veratrum aldehyde and to study the synthesis of microwave radiation of the advantages and disadvantages of this new approach, to provide guidance for the production of meaning.

目的 考察合成藜芦醛的方法，并研究微波辐射合成这种新方法的优缺点，为生产提供指导意义。

To be successful, a crucial selectivity problem in the conversion of aldehyde 4 to aldol 3 had to be understood and solved.

要取得成功，关键选择性问题转化为乙醛醛34已被理解和解决。

According to the properties of bio-oil, converting carboxyl acid and aldehyde through esterification and aldolization have great potential.

根据生物油中化学组成的特点，将极性基团转化为稳定的非极性基团的化学改性方法是生物油改性具有潜力的发展方向。

When adding dianion 5 to aldehyde 4 and using the molar ratios of entry 1, the yield of aldol 3 dropped from 98% to 86%, and 7% of alcohol 7 was formed.

当加入醛酸根5比4，用摩尔进入一日产量3醛从98%下降到86%，而77%的酒精组成。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。