醋酸

Chiral ligands mentioned above and their complexes with acetate copper were used as enantio-selective catalysts in asymmetric cyclopropanation reactions of diazoacetate and 1,1-diphenyl ethylene. Investigations indicate that all of them reveal certain optical-selective capability, but chiral C2-symmetric 2,6-bispyridine ligands show better catalytic capability than chiral asymmetric schifF-base ligands.

选择了2个手性2，6-吡啶双噁唑啉配体和6个手性不对称席夫碱配体与醋酸铜形成的配合物作为催化剂，对重氮乙酸乙酯与1，1-二苯乙烯不对称环加成进行催化反应，发现这8个催化剂对1，1-二苯乙烯的不对称环丙烷化反应都表现出了一定的光学活性诱导能力，手性2，6-吡啶双噁唑啉-铜类具有比手性Schiff碱-铜类更好的催化性能。

The change of 〓 signal resulted in the disturbance of function in hypothalamuspituitary-adrenal axis and declination of immunity, and then the occurrence of symptoms in kidney Yang deficiency. Tonifying kidney herbs probably exerted an effect by regulating 〓 of hypothalamus and lymphocyte of blood.

本研究用醋酸可的松肌肉注射复制了肾阳虚动物模型，动物的表征类似于中医的肾阳虚症状，与文献报道的肾阳虚证表现相一致，说明本实验建立的肾阳虚大鼠模型是成功的，可用的。

Where sterility test media are to be used in the Direct Inoculation of the Culture Medium method under Test for Sterility of the Product to be Examined , modify the preparation of Fluid Thioglycollate Medium and the Soybean–Casein Digest Medium as follows.

当无菌检查培养基用于供试产品无菌检查项下的培养基直接接种法时，按如下内容变更巯基醋酸盐液体培养基和大豆-酪蛋白消化物培养基的制备方法。

Probably the finest Giscours made since the 1975, this black/purple-colored 2000 offers up terrific notes of camphor, creosote, blackberry, and cassis jam intermixed with notions of smoke and earth.

这款黑紫色的2000年玛歌散发出樟脑丸、醋酸黑樱桃、黑醋栗果酱及其烟草复合芳香味。

Acceptable resolutions were achieved when it was applied for the separation of dipeptides including Leu-Tyr and Val-Tyr by using 1-butanol-acetic acid-water (4:1:5, V/V/V) solvent system. The proteins including cytochrome C and myoglobin, lysozyme and myoglobin, and fresh chicken egg-white proteins were well separated by 12.5% PEG1000-12.5% K2HPO4-75% water (pH 9.0) and 16% PEG 1000-12.5% K2HPO4-71.5% water (pH 8.0) system.

应用研究表明，采用正丁醇-醋酸-水(4：1：5， V/V/V)和PEG1000-磷酸钾盐-水(12.5：12.5：75， W/W/W)(pH 9.0)体系可以在较高的流动相流速和较高的固定相保留下分别实现对亮氨酸-酪氨酸和缬氨酸-酪氨酸二肽混合物以及细胞色素C与肌红蛋白、肌红蛋白与溶菌酶混合物及鸡蛋清样品中蛋白成分的成功分离。

Methyl-l, 3-oxazine-2,4-dione are prepared from ethyl acetoacetate and ethyl carbamate at 140 for 6h, catalysted by zinc acetate, giving to 48.8% yields which is 33% more than the literature value.

选用醋酸锌作催化剂，使乙酰乙酸乙酯与氨基甲酸酯在140℃反应6h，合成6-甲基-1，3-噁嗪-2，4-二酮，产率达48.8％，较文献报道值高出了33％。

Its salts and ester s are acetates.

它的盐和酯是醋酸盐。

Acetates are important in the biochemical synthesis of fat s from carbohydrates in plants and animals.

醋酸盐在从动植物碳水化合物中提炼脂肪类生化合成物方面很重要。

Acetates are important in the biochemical synthesis of fats from carbohydrates in plants and animals.

醋酸盐在从动植物碳水化合物中提炼脂肪类生化合成物方面很重要。

The alditol acetates of the constituent sugars after acid hydrolysis were determined by Gas Chromatography .

用气相色谱分析了酸水解后糖成分的醋酸糖醇。

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。