| 1. | An improved method of extraction of caffeine from tea
茶叶中提取咖啡因方法的改进 |
| 2. | The zengcheng ' s method of extraction of a root and jia xian ' s arithmetical triangle
对增乘开方及其相关问题的再探讨 |
| 3. | Method of extraction for the determination of sodium and potassium in brown coal soluble in dilute hydrochloric acid
褐煤中溶于稀盐酸的钠和钾测定用的萃取方法 |
| 4. | The methods of extraction and purification , determination of purity and molecular weight , chemical composition , and bioactivities of tea polysaccharide are summarized
本文就茶多糖的提取纯化方法、纯度测定、分子量测定、化学组成、生理作用等进行综述。 |
| 5. | The article dwells on the composition , method of extraction , peculiarities and application of yeast flavor enhancer to food industry ; and foresees its prospect
综述了酵母风味增加剂的营养成分组成、提取方法、特点及其在食品工业中的应用；展望了其应用前景。 |
| 6. | The research advances of the anthocyanins pigment from purple sweet potato are described , including the physiological activity , the methods of extraction and purification and composition analysis
摘要概述了国内外关于紫甘薯花色苷色素的研究进展，包括其生理活性、色素提取和纯化方法、含量测定以及组分分析，为该色素的进一步开发利用提供依据。 |
| 7. | The machinery is mainly used for extracting tcm & np from herbs and animal organs in the condition of medium - size experiment for the purpose of researching the results and techniques by different methods of extraction
本套设备主要用于试验研究利用各种方法从植物药材、动物药材中提取中药和天然产物，是医药科研院所、大学以及制药企业理想的、进行中型试验的提取成套设备。 |
| 8. | The technologies for producing the synthetic - carotene chemically and natural product based on c14 - aldehyde and vitamin a are introduced , including the method of extraction from natural plants , silkworm feces , salt alga and the method of microbe ferment
摘要综述了-胡萝卜素的生产方法，介绍了以c14醛为原料和以维生素a为原料的化学合成品生产方法和天然品的生产方法，包括从天然植物、蚕粪、盐藻中提取和微生物发酵法。 |
| 9. | Better methods of extraction mean we can drill nearly 10 , 000 metres down and 8 km sideways ; and increasingly sensitive detection techniques have resulted in more oil being found than we could have predicted in the dark days of the seventies oil crisis
更好的采油方法就是我们能向下钻深几近1万米，再侧向钻进8千米；而且日益灵活的探测技术已导致发现更多的石油，比在70年代石油危机的黑暗日子里我们预言过的石油储量还要多得多。 |
| 10. | According to the frequently used methods of extraction and isolation of natural products from organic body , the freeze - dried ascidian tunica was exhaustively extracted with 100 % chloroform then the combined extracts were filtered and the solvent was separately concentrated under vacuum to yield a dark - brown gum
按照目前比较常用的天然产物的提取分离办法，将样品冷冻干燥后，用100氯仿浸泡，收集氯仿滤液，减压蒸馏浓缩去除浸提溶剂，得到黑褐色的浸膏状物质。 |
