求翻译：摘要: 以乙醇和丙烯酸甲酯为原料，氢氧化钠为催化剂，硫酸氢钠为中和剂，合成3-甲氧基丙酸甲酯，用单因素调优方法确定了优化工艺条件:乙醇: 丙烯酸甲酯= 4: 1，氢氧化钠用量10%，反应温度50℃，反应时间5 h，三乙氧基丙酸甲酯的总收率可达97%以上，产品纯度在99． 5%以上．是什么意思？

Abstract: The ethanol and methyl acrylate as raw material, sodium hydroxide as catalyst, sodium bisulfite neutralizer, Synthesis of 3 - methoxy propionate, with the single-factor tuning method to determine the optimum process conditions: ethanol : methyl acrylate = 4: 1, the amount of 10% sodium hyd

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Abstract: Take the ethyl alcohol and the methyl acrylate as raw material, the sodium hydroxide are the catalyst, the sodium hydrogen sulfate are the neutralizaing agents, synthesizes 3- ethylene glycol mono, has determined the optimization technological conditions with the single factor evolutionary

Summary: to ethanol and acrylic methyl ester for raw materials, sodium hydroxide for catalyst, sulfuric acid hydrogen sodium for in the and agent, synthesis 3-methyl oxygen base c acid methyl ester, with single factors adjusting excellent method determines has optimization technology conditions: eth

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