酐

A variety of aldehydes were converted into acylals in good yields with anhydride in the presence of a catalytic amount of zinc bromide under solvent-free conditions.

以醛和酸酐为原料，溴化锌为催化剂，无溶剂条件下高产率地合成了偕二酸酯（其中醛与苯甲酸酐的反应是首次报道）。

After the medium had been decided, we studied the effect of temperature, sucrose concentration and pH value on the yield.

在获得最佳培养条件的基础上，考察温度、蔗糖浓度和pH值对右旋糖酐产量的影响。

The S-SMEDDS with dextran 40 as solid carrier, consisted of well-separated spherical particles and could form microemulsion with droplet size less than 50nm followed by dilution in water. Nimodipine in the S-SMEDDS was in the amorphous or molecular dispersion state. The S-SMEDDS had a faster in vitro release rate than the conventional tablet.

其中以右旋糖酐40为载体的S-SMEDDS，由分离良好的球形颗粒组成，药物以无定形或分子分散状态存在，水重分散后形成粒径小于50nm的微乳，体外溶出快速，显著高于市售片剂。

Ton large anhydride reaction device and 25m3 anhydrous glucose crystallizer have been listed in national key product program respectively in 2000 and 2003, and forced circulation vacuum evaporating crystallizer has been listed in the 2003 Innovation Fund Program by the Ministry of Science and Technology.

本项目中的2万吨大型反应装置、连续结晶器及强制循环真空蒸发结晶器均通过了国家鉴定和科技部组织的专家评审，2万吨大型苯酐反应装置、25m3无水葡萄糖结晶器被列入2000年、2003年国家重点新产品计划，强制循环真空蒸发结晶器装置被科技部列入2003年创新基金计划。

Epoxysuccinic acid was synthesized from maleic anhydride using sodium tungstate as catalyst and hydrogen peroxide as oxidizer and was characterized by IR and 13 C NMR.

以马来酐为原料，钨酸钠为催化剂，双氧水为氧化剂，合成了环氧琥珀酸，并对其进行了红外、13C核磁表征。

Such as PVC, urea, the anhydride, caustic soda production plant, or external leakage demanding medium, such as HF, such as phosgene.

如PVC、尿素、本酐、烧碱生产装置中，或对外泄漏要求高介质，如HF，光气等。

Properties of all kinds of systems on the basis of silver salt were reviewed.

以银盐为线索，评述了各种银盐/二酐/二胺体系所制得的复合薄膜的性能。

Demographic and clinical data including serum creatinine and immunosuppressive therapy were also collected.

同时我们收集了患者的临床数据，包括血肌酐和免疫抑制方案等等。

Serum sodium 126–135 mmol/l, normal serum creatinine. Continue diuretic therapy but observe serum electrolytes.

推荐 血清钠126～135 mmol/l，血肌酐正常：继续利尿治疗不过要注意观察血电解质。

Methods 22 patients undergoing elective surgery were divided into two groups randomly:group HVH and group IVH.After induction of anesthesia, blood was withdrawn via radialis artery while Ringer's lactate solution with threefold the volume of blood withdrawnor Dextran 40 with the same volume as blood withdrawnwas infused in big peripheral vena with identical speed.

选择22例外科择期手术病例，分为HVH和IVH两组，于全麻稳定后，经桡动脉采血，同时外周大静脉匀速输入3倍于采血量的乳酸钠林格液或等于采血量的右旋糖酐施行血液稀释。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。