查询词典 acetacetic ester

It is noticed that this method is also fit for the phosphorylation of serine methyl ester with active hydroxy in side chain.

试验表明，对于侧链上有活性基团的丝氨酸甲酯的核苷磷酰化衍生物的合成，该方法同样适用。

A salt or ester derived from silicic acid .

从硅酸衍生而来的盐或酯。

Plasticizer DOTP was prepared from ethylene glycol residue (major component is PET low polymer) using single step process in which alcoholysis and ester interchange were combined.

以聚酯生产中产生的下脚料——乙二醇残渣为原料，采用辛醇合并醇解、酯交换一步法工艺，合成了增塑剂DOTP。

Condensation condition was studied for lipase-catalyzed synthesis of β-sitosterol ester with conjugated linoleic acid in organic solvent.

采用高效酰化催化法和酰氯化法分别合成了燕尾型胆甾醇酯和对称脂肪族二羧酸胆甾醇酯两类衍生物样品。

Aim To study the effect of phosphalipids on the cholesterol efflux from rat macrophages mediated by HDL3. Methods Measure the cholesterol content, cellular phospholipid content, and the balance between free cholesterol and cholesteryl ester when phosphatidylcholine or sphingomyelin was added to the mediun.

为了研究卵磷脂和鞘磷脂对高密度脂蛋白3介导大鼠腹腔巨噬细胞内胆固醇流出的影响，测定了细胞内胆固醇含量、磷脂含量及游离胆固醇－胆固醇酯平衡的变化。

ABSTRACT Aim To study the effect of phosphalipids on the cholesterol efflux from rat macrophages mediated by HDL3. Methods Measure the cholesterol content, cellular phospholipid content, and the balance between free cholesterol and cholesteryl ester when phosphatidylcholine or sphingomyelin was added to the mediun.

摘 要］为了研究卵磷脂和鞘磷脂对高密度脂蛋白3介导大鼠腹腔巨噬细胞内胆固醇流出的影响，测定了细胞内胆固醇含量、磷脂含量及游离胆固醇－胆固醇酯平衡的变化。

Polydimethyl siloxane, polydimethyl siloxane, sodium acrylate/sodium acryloyldimethyl taurate copolymer, isocetane, sorbitan ester-80, PCA sodium, ethanol, menthyl lactate, spicery, Contain Bulgaria wild rose pistil extract with tendering formula, moisturize and nourish skin, strengthen the firmness and toughness of eye skin, and recover eye skin to moist, firm, tender and bright state.

环聚二甲基硅氧烷、聚二甲基硅氧烷、丙烯酸钠/丙烯酰二甲基牛磺酸钠共聚物、异十六烷，聚山梨醇酯-80、PCA 钠、乙醇、薄荷醇乳酸酯、香精、蕴含自保加利亚野生玫瑰精华成份调和而成的嫩肤配方，保湿滋养，增强眼部弹性及韧性，回复眼部肌肤柔润、富有弹性，令眼部肌肤幼滑紧致、水嫩柔润、神采明亮。

The correlativity between nL and the chromato- graphic retain index of the ester in spirituous liquors, and the threshold value of the ketone in tea are dis- cussed.

定义一个新的拓扑指数nL，并探讨nL与食品香味物质酯、酮的色谱保留值、香气阈值之间的依存关系。

An ester of glycerol and stearic acid .

硬脂酸的甘油三酸酯。

An ester of glycerol and stearic acid.

甘油和硬脂酸形成的酯。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。