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- Gum rosin is distilled from pine gum. 本产品由松脂蒸馏制得。
- Based on the results it was also found that the superfine disproportionated rosin and high contents of p-cymene could be obtained from pine gum using the novel process. 分析结果表明,直接以松脂为原料进行催化歧化反应可同时获得特级歧化松香和高含量的对伞花烃。
- The results showed that resin acids of pine gum produced the intermolecular hydrogen transfer reaction, and the dehydrogenation of resin acids was promoted by the solvent effect of terpenes. 在此基础上对松脂歧化反应过程进行了初步探讨,认为松脂原料中的酸性物质发生分子间氢转移反应,萜烯烃的存在促进了脱氢反应的进行;
- BROWNING OF PINE GUM DURING ITS STORAGE AND RINSING 松脂贮存过程的褐变作用及漂洗方法
- Treatment of Pine Gum Processing Effluent 松脂加工废水的处理试验
- Study on Catalytic Hydrogenation of Pine Gum 松脂催化加氢反应的研究
- Physico-ChemicalTreatmont ofWaste Water from Pine Gum Processing 物化法处理松脂加工废水
- Status and Strategy of Pine Gum in Jinggu County, Yunnan Province 云南景谷地区松脂研究的现状与对策
- STUDY ON INTEGRATIVE TREATMENT TECHNOLOGY FOR PINE GUM PROCESSING EFFLUENT 松脂加工废水综合处理技术的研究
- Many people like to chew mint gum in the summer. 许多人喜欢在夏天嚼薄荷口香糖。
- The pine trees defy severe cold. 松树不畏严寒。
- Keywords pine gum;hydrogenated rosin;pinane;catalytic hydrogenation; 松脂;氢化松香;蒎烷;催化加氢;
- It's a noted place for its pine tree and springs. 这是一个以松树和泉水著称的地方。
- There is a pine forest near our house. 我们家附近有片松树林。
- Keywords pine gum;catalytic hydrogenation;hydrogenated rosin;pinane; 松脂;催化加氢;氢化松香;蒎烷;
- Pine trees were planted all along the river. 沿河两岸种着松树。
- Consisting of or containing gum. 树胶的由树胶组成的或包括树胶的
- Chewing gum on a train is not seemly in a lady. 淑女在火车上嚼囗香糖不太合适。
- The boy popped a piece of gum into his mouth. 那男孩把一块口香糖塞进嘴里。
- He was reading the newspaper, gum in mouth. 他一边嚼著口香糖一边看报。