丙酮的

objectiveto discuss the anti-tumor effect of 20-ginsenoside rh2 on skin tumor-bearing mice, induced by dmba/croton oil.

方法在脱去毛发的昆明鼠背部涂抹dmba丙酮液以及巴豆油丙酮液，观察动物背部乳头状瘤发生情况，记录荷瘤小鼠数及各鼠荷瘤数。

MethodsSmear 0.25% croton oil＼acetone ag on the back of kunming mice,and observe the growth condition of papilloma,then record the quantity of tumor-bearing mice and the quantity of tumor in each mice.

方法在脱去毛发的昆明鼠背部涂抹DMBA丙酮液以及巴豆油丙酮液，观察动物背部乳头状瘤发生情况，记录荷瘤小鼠数及各鼠荷瘤数。

Three open chain crown ether s and triglycolyl isopropylidene hydrazide complexes of rare earth nitrate were synthesized for the first time with isoproylidene hydrazide as the terminal group and through IR, 1HNMR, MS, characterized their structures have been characterized.

首次合成了以丙酮酰腙为端基的3种双酰腙型开链冠醚及三甘双酰丙酮腙稀土硝酸盐配合物，并通过元素分析，IR，1HNMR，MS对分子结构进行了表征

Finally, PEP and ADP react to form pyruvate and ATP.

最后，PEP和ADP在丙酮酸激酶的催化下反应，形成丙酮酸和ATP。

The dissertation mainly focuses on the pyruvic acid processes of extraction, purifiction and concentration from the pyruvate fermentation broth.

本文着重研究了丙酮酸发酵液中丙酮酸的提取、纯化和浓缩工艺。

Gibbs free energy of the hydrogenating reaction of acetylacetone iron to produce pure iron and acetylacetone was investigated according to the frequency analysis results.

根据频率分析结果，计算不同温度下乙酰丙酮铁加氢生成铁和乙酰丙酮两种互变异构体的吉布斯自由能。

At the same time,research contents and aim of the synthesis of acetylacetone by high activity MgO at low temperature were described in detail.The technology has some features such as moderate reaction condition,low energy consume and little by-product.The purity and yield of acetylacetone were 99.5% and 95% respectively,so both the economic and social profit are very remarkable.

同时，详述了采用高活性氧化镁为催化剂，低温催化合成乙酰丙酮工艺的研究内容和方向，该工艺反应条件温和，能耗低，副产物少，乙酰丙酮收率达到95%，产品纯度99.5%，经济效益和社会效益均十分显著。

Result Under the pretreatment conditions, the content of acetone extractives transformed. The hydroxyl and carboxyl, belonging to auxochromic groups, were oxidized into the carbonyl and ester groups. Also, there were plenty of auxochromic groups and chromophoric groups in the acetone extractives of silver chain.

结果］刺槐在预处理条件下，丙酮抽出物成分发生了变化，羟基、羧基等助色基团在预处理条件下氧化成羰基、酯基等发色基团，且丙酮抽出物的主要成分中含有大量发色基团和助色基团。

Chapter 4: Synthesis of 1,5-diary 1-1,4-pentadien-3-ones from acetone or benzalacetone with aromatic aldehydes results in 86-97% yield with potassium hydroxide as catalyst under ultrasound irradiation in 5-60min.

为合成氰基环己醇找到一条方便高效的合成方法。第四章：研究了超声辐射下，以氢氧化钾为催化剂，芳香醛与丙酮及亚苄基丙酮之间反应合成1，5-双苄基-1，4-戊二烯-3-酮。

Furyl 3 buten 2 one is synthesized from furfural and acetone in water sodium hydroxide medium.

以呋喃醛为原料，在水-氢氧化钠体系中合成了糠叉丙酮，探讨了丙酮用量，氢氧化钠浓度对反应的影

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。