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醋酸

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DM is mainly used as high-boiling point solvent for printing ink, dyestuff, resin, cellulose and painting.

二乙二醇丁醚醋酸酯有着十分高的沸点,主要用于高温烤瓷以及印刷油墨的高沸点溶剂,也用作乳胶漆的助聚结剂;由于该溶剂挥发速度很慢,在水中溶解度低,所以可作为丝网印刷油墨的溶剂,以及聚苯乙烯涂料印花釉的溶剂;也可作为共沸剂用于醇与酮的分离。

Meanwhile,The impact of alcohol concentration,fermentation temperature,inoculums dose,initial sugar concentration,rotation speed,initial pH value to acid yield and ester yield in the process of solid-state fermenting craft was studied.

同时研究了酒精度、发酵温度、接种量、起始糖度、摇床转速、初始pH值等因素在固态发酵过程中对产醋酸和产酯量的影响。

Results The Magnolia biondii Pamp volatile oil nanometer bangosome could significantly relieve the degree of swelling in Jimpy mice extended by p-xylene,inhibit the increased capillary permeability in Jimpy mice extended by HAC,and combat the symptoms of rhinocnesmus,sneezing,nasal discharge with a better effect than the Magnolia biondii Pamp volatile oil.

结果辛夷挥发油纳米脂质体能显著减轻二甲苯所致小鼠耳肿胀程度,能显著抑制醋酸所致的小鼠毛细血管通透性增加,并能有效对抗大鼠过敏性鼻炎所产生的鼻痒、喷嚏和流涕症状,疗效优于辛夷挥发油。

Pear vinegar was produced using pear juice as raw material after alcohol fermentation and acetic fermentation.

以梨汁为原料经过酒精发酵和醋酸发酵工艺,制得了梨果醋。

The results indicated the ally1 carbon of cyclohexene was catalytically oxidized by molecular oxygen at atmospheric pressure in the presence of the polymer complex and a trace of HOAc at 70℃, which afforded corresponding alcohol, ketone and hydroperoxide acting as intermediate.

结果表明,70℃时,以微量醋酸为添加剂,在催化剂的催化作用下,以常压氧气氧化环己烯,得到烯丙基位的氧化产物环己烯醇、环己烯酮和中间产物环己烯过氧化氢。

Adopting 30-second nitrocellulose as the main sticky material, using ethyl acetate, ketone, alcohol and aromatic hydrocarbon as a mixture solvent and modifying nitrocellulose with dimethyl phthalate plasticizer,the prescription of staple adhesive was designed with orthogonal experimental methodology.

选用30s 硝酸纤维素作为主要成膜物质,醋酸酯、酮、醇和芳烃作为组合溶剂,邻苯二甲酸酯类复合增塑剂对硝化棉进行改性,采用正交试验方法确定胶黏剂的配方。

5The organic acids in koumiss had apparent inhibitory effect to bacillus subtilis.Lactic acid was important for inhibition, the presence of acetic acid and alcohol improved the inhibitory effect.

酸马奶酒中有机酸对枯草芽胞杆菌有较强的抑菌作用,乳酸起主要作用,醋酸和酒精起增效作用。

Methods The models of the gastric mucosal injury induced by ethano l and acetic acid were used in rats.

用乙醇和醋酸烧灼致大鼠急、慢性胃粘膜损伤方法,观察胃宝冲剂5g/kg、2.5g/kg、1.25g/kg灌胃给药后对胃粘膜损伤的保护作用,并与胃苏冲剂比较。

The results show that,after the exciting of 0.05mol/L sulfuric acid and acetic acid,the capability of composite slag cement advanced.

试验表明:在0.05mol/L的硫酸和醋酸激发下,复合渣水泥各项性能指标得到较大的提高。

TWF, lead acetate and cadmium chloride. Methods Using NADPH-d histochemistry to investigate activity change of NOS in the testis of mice, which were survived for 1,2,3,4 weeks after administration of TWF, lead acetate and cadmium chloride.

给予醋酸铅和氯化镉1周后,NOS阳性的睾丸间质细胞数量明显减少,并随给药时间延长而加重,NOS活性逐渐降低,给药4周后NOS阳性的睾丸间质细胞几乎不着色。

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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。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。