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- The ether soluble compounds of the reaction product were analyzed by GC/MS.The major iden tified compounds were pyrazine and furan compounds. 该反应产物的醚溶性成分经GC／MS分析显示，其主要成分为吡嗪类和呋喃类化合物。
- We study the calculation formula and its application of H+concentration in soluble acidic saline solution of tribasic acid(except NH4+ salt) in this paper. 对三元酸易溶酸式盐溶液(铵盐除外)中H+离子浓度的计算公式及公式的应用进行讨论。
- Four compounds were isolated from the petroleum ether soluble portion,identified as 28-aldehyde-taraxerenone(1),28-hydroxy-taraxerenone(2),epi-friedelanol(3), 4-methyl stigmast-7-en-3-ol(4). 从石油醚部位分离鉴定了4个化合物:3-羰基-14-taraxeren-28-醛(1),3-羰基-14-taraxeren-28-醇(2),表无羁萜醇(3),4-甲基-豆甾-7-烯-3-醇(4);
- The aqueous phase were acidified with sulfuric acid, taken to dryness and extracted with methanol (water soluble acidic fractions) and concentrated for TMS derivatives. 有机相(碱性和中性部分)经浓缩并硅烷化，水相经酸化、吹干、提取(提取物为酸性水溶性部分)并硅烷化。
- The damage to materials caused by acidic matter in atmosphere is the main portion of the economic loss caused by acid precipitation. 大气中的酸性物质对暴露在大气中的材料的破坏是酸沉降经济损失中的重要部分。
- The deduced amino acid sequence is 77% identical to the gene from Citrus reticulata (GenBank,AF312229), and only 33% identical to the gene from Fragaria ananassa (GenBank AF000521), was suggested to encode a soluble acid invertase. 在GenBank中进行同源性检索的结果表明,该成员编码的氨基酸与植物可溶性酸性转化酶的氨基酸同源性较高,与宽皮柑橘(GenBank登记号AF312229)可溶性酸性转化酶基因编码的氨基酸具有77%25的同源性,而与定位于细胞壁的(不溶性)酸性转化酶同源性较低,最高仅33%25(Fagaria ananassa,GenBank AF000521)。
- Some reactions such as those between soluble acids and bases occur very rapidly. 有些反应，象酸碱溶液之间的反应进行得很快。
- Thus, large quantities of highly soluble acids and caffeine dissolve into the cup. 因此，咖啡里便含有大量易于溶解的酸及咖啡因。
- petroleum ether soluble matter 石油醚可溶物
- A whiff of ether will put you out in a few seconds. 一剂乙醚几秒钟后就会使你失去知觉。
- This kind of tablet is soluble in water. 这种药片能溶于水。
- Some of your scientists see energy, matter, ether. 有些科学家看见的是能量、物质、以太。
- These problems are not readily soluble. 这些问题不容易解决。
- This substance is soluble in alcohol. 这种物质能够溶解在酒精中。
- The capsule is filled with small soluble cases. 胶囊里充满了可溶的小颗粒。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- To wash or percolate the soluble matter from. 把桌布上的墨迹洗掉。
- The soil becomes more and more acidic as pollution mounts up. 随着污染的加剧，土壤的酸化越来越严重。
