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It was very important role for diffusion layer of a passive DMFC to deal well with the channels of water, gas and electron.

在被动式直接甲醇燃料电池的扩散层中,处理好水、气、电子的通道对电池性能有着十分重要的作用。

Three parts of eluates, 20%, 50% and 95% ethanol eluate were obtained, separately.

结果甲醇直接提取所得到的共有峰为7个,而经大孔树脂柱层析后50%乙醇洗脱物得到共有峰11个。

The gradient elution of methanol in ammonium acetate buffer allowed elution of all the amines in less than 30 min.

梯度洗脱甲醇在铵醋酸缓冲区允许洗脱所有的胺在更少超过30分钟。

A novel rearrangement reaction of enol ester epoxide upon treatment of methoxide was first discovered, which could generate two key essential functions for ring cyclization, C5-OH and 7, 11-double bond in one step.

烯醇酯环氧化物在甲醇钠处理下一步反应派生出两个关环所需的重要官能团:C5-OH和7,11-双键;2。

It was shownthat, among the three possible tautomers; i.e., the keto-form and the two enol forms, and thecorresponding enol anion, only the enol form 31 was actually responsible for the singletoxygen reactions.

用核磁共振及从头算法研究了化合物12b和23a在甲醇和吡啶中的烯醇化作用,结果表明,在其三种互变异构体以及相应烯醇负离子中,只有烯醇式31是实际参与单重态氧反应的成份。

The experimental results were compared with those obtained by traditional methods of water _ bath heating saponification and enzymology _ spectrophotometry.

目前采用最多的皂化方法是将待测物与KOH的甲醇溶液加热回流1 h[ 3],但由于其耗时长,不适应于大量样品的测定。

Two series of Soxhlet extraction for each sample used in the presence and absence of copper respectively are conducted. Experimental results indicate that copper treatment has a strong influence on the quantity of the EOM, the extent of which depends on the sample.

实际地质样品在不同溶剂中加铜与不加铜的索氏抽提对比实验结果显示,加铜时抽提得到的氯仿沥青的量会增加,甲醇沥青则没有明显一致的变化规律。

Remarkable changes are ubiquitous for NSO fractions and asphaltene. The yields of fatty acids from copper-treated EOM, in particular palmitic acid and stearic acid, do not decrease for the interaction of copper with organic acids but increase markedly.

加铜得到的可溶有机质脂肪酸的含量不仅没有因为铜和脂肪酸的作用而减少,反而大幅度增加,尤其是氯仿沥青中的脂肪酸,甲醇沥青中的脂肪酸增幅较小。

Lower temperature and higher pressure favored the promotion of carbon equilibrium conversion rate and methanol concentration.

低温和高压有利于提高碳的平衡转化率和甲醇的浓度。

Particular reaction for the esterification of acetic acid and menthol is carried out.

对於醋酸与甲醇的酯化特定反应被推导出。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

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