醋酸

The experiment lasted for 3 weeks with 4 mice killed every week. The ratio changes of T, B lymphocyte were tested by using the acid α-naphthyl acetate esterase test.

实验分3周进行，每组每周各杀4只，采用酸性α-醋酸萘酯酶方法检测T、B淋巴细胞的动态比值变化。

This experiment take one-day-old chickens as the object of study, we apply cell raise technologyand MTT method, the indirect enzyme-lined immunosorbent assay, the immunity enzymehistochemistry methods andα-naphthyl acetate esterase etc..

本实验以1日龄雏鸡为研究对象，应用细胞培养技术和MTT法、间接酶联免疫吸附实验、免疫酶组织化学和组织酸性α-醋酸萘酯酶染色法等方法。

It was conducted that different doses ranging from 0.01～0.20μg/kg TBTCL intrapertoneal on the influence of TBTCL on peripheral blood T-lymphocyte and spleen index in mice by using peripheral blood lymphocyte acid α-naphthyl acetate esterase detection method,and mice body and spleen weight changes were observed.

进行了0.01～0.20μg/kg TBTCL 腹腔注射对小鼠外周血T-淋巴细胞与脾指数影响的实验，采用外周血液淋巴细胞酸性α-醋酸奈酯酶检测法，并观察小鼠体重和脾重变化情况。

The effects of all kinds of factors, just like calcination temperature of niobic acid catalysts, nitration reaction time, nitration reaction temperature, recovered catalyst, acetic anhydride and concentration of nitric acid were studied by gas chromatography.

研究了催化剂焙烧温度、硝化反应时间、硝化反应温度、有无醋酸存在、硝酸浓度、催化剂的重复使用等因素对甲苯硝化反应影响。

In the presence of catalytic rhodium acetate, ethyl 2-diazo-3-oxo-per fluoroalkanoates, reacted readily with nitriles to give a series of 5-fluoroalkyl substituted 1, 3oxazoles with high regio-selectivity through a metal carbenoid intermediate. The reactions of carbenoids with noncyclic vinyl ethers or cyclic vinyl ethers afforded dihydrofuroates in good to excellent yields. Interestingly, only vinyl C-H insertion compound was obtained concerning of the reaction of carbenoids with 2, 5dimethylfuran due to the steric hindrance of methyl group

醋酸铑分解2-重氮-3-氧代-全氟羧酸乙酯形成的金属卡宾作为1，3-偶极体，可以与一系列芳基或烷基取代的腈反应，高度区域选择性地生成一系列4-乙氧羰基-5-氟烷基取代的噁唑化合物；也可以与富电子的链状和环状的烯基醚反应，以优良的产率得到一系列氟烷基取代的二氢呋喃类化合物；而与2，5-二甲基呋喃的反应，由于甲基的位阻作用，只得到金属卡宾对呋喃3-位烯基碳氢键插入产物。

Most of the substances in the deposit were the nonsticky calcium carbonate and fines that could adhere to the sticky contaminants and deposit together, resulting in a great deal of the deposit.

对福建南平纸厂网前压力筛处的胶粘物进行分离和分析发现，以聚醋酸乙烯酯和聚丙烯酸酯为代表的人工合成聚合物以及机械浆中的木材树脂是产生胶粘物的根本来源，但它们在胶粘物沉积中的含量只有5%左右。

Ling Sheng, Guangzhou Chemical Trading Co., Ltd. is a franchise-n-butyl, octyl ester, diethylene glycol, butyl acetate, such as plasticizers, solvents products trading company.

广州市凌升化工贸易有限公司是一家以专营二丁酯、二辛酯、二甘醇、醋酸丁酯等增塑剂、溶剂产品的生产贸易公司。

In this paper,the monomers including St and BA with strong waterproof property were employed to modify the traditional PVAc emulsion,and meanwhile draw into DAAM functional monomer in the copolymer system,will prepare out cross linking copolymer emulsion for ADH to improve the waterproof,oilproof and dry/wet mechanical property of fuel oil filter paper.

采用具有较强抗水性的苯乙烯、丙烯酸丁酯等单体对传统聚醋酸乙烯酯乳液进行共聚改性，并在共聚体系中引入双丙酮丙烯酰胺功能单体，制备出可通过外加己二酸二酰肼交联的外交联醋丙共聚乳液，以期提高燃油滤纸的耐水、耐油性和干湿态的力学性能。

This thiosemicarbazide was treated under the catalysis of glacier acetic acid,mercuric acetate giving 2 benzyl 5 phenylamino 1,3,4 thiodiazole and 2 benzyl 5 phenylamino 1,3,4 oxadiazole respectively.

然后分别将其在冰醋酸、醋酸汞存在下关环，制得 2 苯甲基 5 苯胺基 1，3 ，4 噻二唑与 2 苯甲基 5 苯胺基 1，3 ，4 口恶二唑

Binary blends of polyoxymethylene/co-polyamide and ternary blends of poly- oxymethylene/co-polyamide/ethylene-vinyl (POM/COPA/EVA) were prepared and the effect of COPA and EVA contents on properties of blends was investigated.

研究了聚甲醛/共聚酰胺二元及聚甲醛/共聚酰胺/乙烯-醋酸乙烯酯共聚物(POM/COPA/EVA)三元共混物，探讨了COPA、EVA用量对共混体系性能的影响。

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。