以下为句子列表：
英文: A further advantage of this method of working is that the sodium alcoholate can very conveniently be made by mixing the sodium with a proportion of the hydrocarbon which is to be used as the solvent for the reaction and adding the required amount of the a
中文: 另外这种方法还有一个优点：纳和一定比例的碳氢化合物混合在加入所需数量的乙醇可以方便制备乙醇纳，而碳氢化合物可以作为溶剂使用。
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英文: A novel method is reported for mass separation of proteins, based on sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE).
中文: 报导了一种基于十二烷基硫酸钠聚丙烯酰胺凝胶电泳(SDS-PAGE)的新型蛋白质质量分离方法。
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英文: A review on application of monohydrated sodium bisulfate as catalyst in synthesis of ester, such as monocarboxylic esters, dicarboxylic esters, chloroacetates, hydroxycarboxylic esters, aromatic esters and the reusability of sodium bisulfate with.
中文: 摘要介绍了一水硫酸氢钠在催化合成酯（如一元羧酸酯、二元羧酸酯、氯乙酸酯、羟基酸脂、芳香酸酯）中的应用及其重复催化性能。
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英文: A series of standard solution made up with standard substance of sodium carbonate, and combusted in a high-frequency induction furnace with pure oxygen, and the amount of total carbon was measured by infrared absorption.
中文: 摘要以碳酸钠为基准物质，配成一系列标准溶液，在通有纯氧气的高频炉中燃烧，红外吸收法测定碳含量，绘制校准曲线，测定矽中总碳量，与推荐值基本一致，方法准确、结果满意。
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英文: A thermal expansivity test device consisting of hating unit, attemperating unit, displacement transducer, recorder and so on, was developed to determine the thermal expansivity of new sand, clay-beaded sand, sodium silicate sand, resin bonded sand with th
中文: 摘要铸造用砂热膨胀性测试装置，由加热装置、温控装置、移位传感器、记录仪等组成，可实现铸造用原砂（亦可用于粘土型砂、水玻璃型砂、树脂型砂等）的随温和等温热膨胀性测试。
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