酯

In the experiment, palm stearin and soybean oil were mixed at 7:3 ratio for transesterification, and then the transesterified oil was used to prepare the special oils for baking frozen dough.

将棕榈硬脂与大豆油按7：3比例混合进行酯交换反应，得到酯交换油脂用于制备焙烤冷冻面团专用油脂。

Stearin.

通常略去甘油基一词，而称该甘油三酸酯为棕榈酰-油酰硬脂酰甘油酯。

Plant Sterol and stanol esterified currently applied in foods that can produce lowering of the serum cholesterol level.

植物甾醇一般是以甾醇酯的形式应用于食品中：含有植物酯化甾醇或甾烷醇的食物能够使血清胆固醇水平降低。

The relationship between asthenia syndrome and cholesterol triglyceride in MsPGN: As far as cholesterol is concerned, asthenia-sthenia syndrome is higher than pure asthenia syndrome and asthenia syndrome with sthenia.

本研究资料MsPGN中医虚证与胆固醇、甘油三酯的关系：就胆固醇而言，虚实并重证组高于单纯虚证、虚证夹实两组，气虚证组高于阳气亏虚证、阴阳两虚证组；就甘油三酯而言，虚实并重证组高于单纯虚证组，气虚证组高于阴虚证、气阴两虚证、阴阳两虚证三组。

The hemisuccination process and kinetics ofβ-sitosterol and stigmasterol with succinic anhydride The reaction product ofβ-sitosterol and stigmasterol with succinic anhydride were characterized by elemental analysis,~1H NMR and ~(13)C NMR.

应用高效液相色谱对混合植物甾醇琥珀酸酯化产物中各组分的含量进行了分析测定。实验结果表明，各种植物甾醇琥珀酸单酯的分离效果较好，响应时间在10min左右，面积归一法能够快速准确地用于该过程的分析测试。

Keywords infrared spectrophotometry;stigmasterol acetate;β sitosterol acetate;quantitative analysis

红外分光光度法；豆甾醇乙酯；β-谷甾醇乙酯；定量分析

Result:Eight compounds were elucidated as β amyrin palmitate, taraxastery acetate, luteolin 7 O α L rhamanopyranosyl (1→2)β D glucopyranoside,luteolin 7 O β D glucopyranoside, triacontanic acid,β sitosterol, stigmasterol and stigmast 7 en 3β ol.

结果 ：从全草中分离得到 5个化合物，β香树脂醇棕榈酸酯，蒲公英醇乙酸酯，木樨草素 7 O α L 鼠李糖基(1→ 2 )β D 葡萄糖苷，木樨草素 7 O β D 葡萄糖苷，三十碳酸；1个混合物，β谷甾醇、豆甾醇、豆甾 7 烯 3β醇。

Based on a survey of the mechanism for reactive dyes containing β-hy-droxy-ethyl sulfonyl sulfuric ester on the cellulosic fibre, and the structures of non-ionic nature of disperse dyes , a new range of reactive disperse dyes for polyester cotton blends is proposed.

本文综合分析了含β-羟乙基碸硫酸酯基活性染料的染棉机理和聚酯纤维用非离子型分散染料的结构特点，提出了一类用于涤棉混纺织物的含β-羟乙基碸硫酸酯基活性分散染料。

Chiral homoallylic alcohol was prepared in this paper from asymmetric allylation of aldehyde with enantiomerically pure allylboronate tartramides such as chiral N,N'-diphenyl tartramide and N,N'-di...

本文以手性烯硼酸丙基酒石酸酰胺酯(如烯丙基硼酸-N，N'-二苯基酒石酸酰胺酯)为辅基，进行醛的不对称烯丙基化反应研究。

The project to be built with an annual output of 20,000 tons a polyethylene terephthalate plant. Adopting advanced and mature direct esterification process for the production of raw materials for purified terephthalic acid and 1,3-propanediol.

本项目拟建设一套年产2万吨聚对苯二甲酸丙二醇酯生产装置，采用国内先进成熟的直接酯化法生产工艺，主要原料为精对苯二甲酸和1，3-丙二醇。

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。