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Amino to acetyl phenol, in have technology of two kinds of production domestic and internationally, acetic anhydride craft of the United States, acyl changes temperature to have 75 ℃ only, acyl changes mother liquor not apply mechanically, deputy reaction is little, of production thick tasting is kind of white almost, purificatory craft is very simple, activated carbon dosage only 2~3%, the Kun that its product does not have glow material almost in different third alcohol inferior the sealed impurity of amine impurity and minim, settleclear lightness it may not be a bad idea, the product quality that acetic anhydride craft produces is good, but close rate low, cost is high.

对乙酰氨基酚,在国内外有两种生产工艺,美国的醋酐工艺,酰化温度只有75℃,酰化母液不套用,副反应少,生产的粗品几乎是类白色,精制工艺就非常简单,活性炭用量仅2~3%,其产品在异丙醇中几乎无红光物质的醌亚胺杂质及微量的未知杂质,澄明度也好,醋酐工艺生产的产品质量好,但收率低、成本高。

In the course of the condensation of 2, 4, 6-triamino quinazoline with substituted benaldehyde, the solvent DMF was replaced by absolute ethanol and the dried 3A clathrates was used as the dehydrating agent in order to improve the yield.

在2,4,6-三氨基喹唑啉与取代苯甲醛的缩合过程中,用无水乙醇代替DMF作溶剂,并用干燥过的分子筛吸收反应过程中生成的水,从而简化了后处理的步骤,并提高了产率。

The apoB gene polymorphism on Xba I site of 53 6 unrelated Chinese Han people,aged 25~64 years,was analyzed using PCR and Re striction Fragment Length Polymorphismmethod;serum apoA I,apoB,total chole s terol,triglyceride,HDL cholesterolwere measured,and LDL choleste roland non-HDL cholesterolwere calculated.

采用聚 合酶链反应结合限制性片段长度多态性分析的方法,分析536名25~64岁的无血缘关系的汉族人的apoB基因Xba I位点多态性,并测定其血清apoA I、apoB、总胆固醇、甘油三酯、高密度脂蛋白胆固醇,并计算低密度脂蛋白胆固醇LDL-C)及非高密度脂蛋白胆固醇。

This effort was made to develop a substitutive theoretical framework on the interpretation of Growth of conservative churches and sects, because of the weakness of traditional theories on this area.

研究结果显示,特定宗教组织的发展与变迁,须视环境结构的发展与资源的有无,以及宗教组织内部对外在发展的反应而定。

Neither with the expression of M3 receptor, Nor the expression and activiety of AChE in sweat gland.

3长期的TPM处理可降低小鼠外泌汗腺对匹罗卡品的分泌反应性,TPM未影响到小鼠汗腺的交感神经发育和支配、汗腺周围的胆碱能毒蕈碱M3受体表达,对汗腺部位的AChE表达及其活性也无明显影响。

In this thesis, we analyze the zeroth order term of eigenpolynomial of linearized matrix, and a necessary condition for diffusion-driven instability of n-species of a reaction-diffusion system is attained by using the Routh-Hurwitz criterion.

本文我们讨论含有n(。23)个物种的反应系统,对系统在无扩散时稳定的平衡态解附近线性化,通过分析线性化矩阵特征多项式的零次项,根据Routh一Hurwitz准则,得到了零次项使系统产生扩散驱动不稳定性的必要条件。

It includes the following steps: extract trivalent iron ion and divalent iron ion in water phase through organic extractant, get predecessor of; absterge it with secondary distilled water for2-3 times and get pure load metal predecessor of organic phase; mix organic phase of Mg2 and Fe3 with mol rate of 1:2 and introduce them into autoclave, add distilled water according to the rate of 3:1 or 4:1 of organic phase and water phase and airproof it, and then mix it fiercely, stripping with hydrothermal method at temperature between 200 degree C and 300 degree C and make them react for 2.5 hours; cool it to the room temperature under natural condition, separate liquid and centrifugalize it, absterge it with absolute alcohol for 2-3 times and dry it at temperature of 50 degree C for 30-180 minutes, then get product of magnesium ferrite.

包括如下步骤:通过有机萃取剂来萃取水相中的三价铁离子和二价镁离子,制得有机相前驱物;用二次蒸馏水洗涤2-3次,获得纯净的负载金属有机相前驱物;按照Mg 2 和Fe 3 摩尔比1∶2将有机相混合均匀后引入高压釜中,按照有机相与水相的比例为3∶1或4∶1加入蒸馏水,密封后,对溶液进行强力搅拌,水热反萃的温度在200-300℃之间反应2.5小时;自然冷却至室温,分液,离心分离,用无水乙醇洗涤2-3次,在50℃下干燥30-180分钟,得铁酸镁产品。

Results:(1) In majority of patients, the onset of the disease started in their 20-40 decade. The skin lesions were mainly located in the groins and axillae.(2) Food, drug and mood might exacerbate the disease.

结果(1)发病年龄多在20~40岁,好发于腋窝、腹股沟等皱褶部位;(2)食物、药物、心理等因素可以加重病情;(3)4例患者有乏力的表现,与皮疹严重程度一致;(4)病程超过20年的患者中,多数(10/15)无逐年好转的趋势;(5)对药物治疗的反应个体差异较大,局部结合系统治疗有一定疗效。

Three methods and 3 calculating formula were used to choose for concrete operation according to the idea at urine iodine assayed with cerous sulfate reducing reaction by which WHO and ICCIDD draw up the preventive and curative criteria of iodine deficiency.

本文根据&WHO与ICCIDD制定的碘缺乏病防治标准与方法&中硫酸铈还原反应测定尿碘的意图,采用3种方法和3种计算公式对具体操作进行选择,并对原标准对照计算法的不合理以及计算误差对评价尿碘水平的效能进行了探讨。结果表明:(1)方法Ⅰ存在仪器误差,准确度不佳。方法Ⅱ线性关系和准确度较理想,但操作不便计算麻烦。方法Ⅲ线性关系和准确度与方法Ⅱ无差异,操作和计算简便、节约试剂。

Objective:By histochemical method, the four biotinylated lectins (DBA, SBA, WGA, UEA 1) were used to study changos in glycoconjugate expression on the surface of endometrium of 28 cases of RSA without obvious reasons in secretary phase, at the same time, endometrial biopsies were taken for histomorphologic evolution.

本文通过生物素分别标记的双花藕豆凝集素、大豆凝集素、麦胚凝集素及荆豆凝集素(UEA-1)与子宫内膜的反应,应用S-P法研究28例无明显原因反复流产的分泌期子宫内膜糖复合物的变化及与其组织形态学分期的相关性。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。