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- esterified rosin 酯化松香
- Gum rosin is distilled from pine gum. 本产品由松脂蒸馏制得。
- Research Survey on the Rosin of Pinus L. 天然松树脂的研究进展。
- Dry rosin is best in tropic and soft rosin in cold climate. 干的松香在热带最适用,而软的松香适用于寒冷的气候。
- The world gum rosin production appeares to decline in recent years. 目前世界上脂松香生产在大多数国家出现下降趋势。
- Very high activity rosin flux used for difficult to solder metals. 用以对难以焊接金属进行焊接的极高活性松香助焊剂。
- Specifications of Gum Rosin Glyceride and Hydrogenated Ros. 松香甘油酯和氢化松香甘油酯的技术指标。
- Ballerinas coat their toe shoes with rosin to avoid onstage slips. 芭蕾舞女在她们的舞鞋脚尖端涂上松香,以避免演出时滑倒。
- Shuxiang, Rosin I walked with an unforgettable childhood. 书香,松香伴我走过了难忘的童年。
- Gum rosin is a kind of natural resin with high economic value. 松香是一种具有重大经济价值的天然树脂。
- Saponifiers in an aqueous cleaner can be used to remove rosin flux residues. 水性清洗剂中的皂化剂可用来去除松香焊剂残留物。
- The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. 以氟化钾为氟化剂,环丁砜为溶剂置换氟化,再与甲醇酯化得到四氟对苯二甲酸甲酯;
- The heat resistance of rosin was improved by HBS lignin modification. 松香的热稳定性通过高沸醇木质素的改性得到改善。
- Shall we recognize it from the cool rosin breeze and the grist freshly reaped. 让我们从微凉的松风中去认取,让我们从新刈的草香中去认取。
- Trichloroacetic acid was esterified by acid and methanol,and FID detector was used. 用浓硫酸、甲醇酯化三氟乙酸,氢火燃检测器检测。
- The results indicated that the esterified yield was above 97% under the appropriate reaction conditions. 结果表明,在最适宜的反应条件下,酯化率在97%25以上。
- Huang Y C,Lyne M B,Stark J H.Modified rosin emulsion:US,6048439[P].2000-04-11. 路嫔;梁海燕;谢福斌;等.;阳离子分散松香胶的研制[J]
- The oil was esterified and then analyzed by GC-MS.11 fatty acids were identified in Elaeagnus mollis seed oil. 翅果油树种子油经甲酯化处理后用GC-MS分析和鉴定其组成和相对含量。
- Hydrogenated rosin is one of the important modified produets of rosin. 正>氢化松香是松香改性产品之一。
- In a multiple-step procedure, the extracted mucopolysaccharide is esterified to mucopolysaccharide polysulfate. 经过一系列多步骤的程序,萃取的粘多糖被酯化成多磺酸粘多糖(MPS)。
