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- Ethyl lactate was synthesized with sodium bisulfate. 采用硫酸氢钠为催化剂合成乳酸乙酯。
- Ethyl lactate is partly miscible with water and most organic solvents . 乳酸乙酯易溶与水和多种有机溶剂。
- I mind my p's and q's whenever I see him. 每当我见到他我都谨慎行事。
- In English, b, p, m and w are bilabials. 英语中的b、p、m、w为双唇音。
- AB and CD intersect at (the point) P. AB线和CD线在P点相交。
- The time now is 10:00 p, m, sharp. 现在的时间是晚上10点整。
- The principle of producing ethyl lactate for cell-stored jar wine and sour wine, and fermentation process was given. 仓贮坛酒、贮坛装酸酒和发酵过程中乳酸乙酯的形成机理。
- Ethyl p - hydroxybenzoatc 对羟基苯甲酸乙酯
- Especially, ethyl caproate content and ethyl lactate content in liquor produced in reconstructed pit increased greatly. 窖池产酒的主体香味成分己酸乙酯和乳酸乙酯含量提高较大;
- A synthetic method of ethyl lactate catalyzed by siticic-tungsten acid was studied. 研究了硅鸽酸催化合成乳酸乙酯的方法;
- ethyl p - hydorybenzoate 对羟基苯甲酸乙酯
- ethyl p - hydroxybenzoate 对羟基苯甲酸乙酯
- Ethyl pyruvate was synthesized from ethyl lactate using TBHP as oxidant and TBAB as phase transfer catalyst,the purity of product was over 98 %. 以叔丁基过氧化氢(TBHP)为氧化剂,四丁基溴化铵(TBAB)为相转移催化剂,有效地将乳酸乙酯氧化合成丙酮酸乙酯,产品纯度达98%25以上。
- The "d" in "grandpa" has been lost by assimilation to "p". "grandpa"中的"d"因受"p"的同化而不发音。
- The reaction is environment friendly and easy to operate,it provides a new method to synthesize ethyl pyruvate from ethyl lactate. 该反应操作简单,无污染,为丙酮酸乙酯合成开辟了新方向。
- To introduce the ethyl group into(a compound). 使乙基化把乙基引入(一化合物)
- ethyl p -hydroxybenzoate 尼泊金酸乙酯
- Ethyl lactate was synthesized by transesterification of D, L-lactide with ethanol utilizing concentrated sulfuric acid as catalyst. 研究了D,L-丙交酯在浓硫酸催化作用下,与乙醇进行酯交换反应合成乳酸乙酯。
- Mixture of chiral enantiomers of ethyl lactate and ethyl pyruvate was separated completely by gas chromatography on chiral stationary phase. 运用气相色谱手性固定相在适宜的色谱操作条件下将丙酮酸乙酯和乳酸乙酯手性对映体完全分离。
- The light now shining on P is called incident ray. 射到P点的光叫做入射光线。