abietic

常见例句

• It is not necessary to use natural pure abietic acid and dehydroabietic acid and they are not easily obtained as standard substances.
  该法不仅可以克服松香中各异物体及同系物的干扰,而且不必用极难制备和保存的天然纯枞酸和脱氢枞酸作标样。
• The results show that these oleoresins have common characteristics of that of subgen.Pinus, but all their amount of abietic acid are more than 20 %.
  发现它们基本上具有油松亚属松树松脂的共同特征,唯枞酸含量较高,均超过20%25;
• The results of the analysis show the main product is a dehy- drogenated abietic acid, whose quality is up to the requirement of the potassium soap of rosin.
  分析结果表明，反应产物主要为脱氢枞酸，其质量符合作为歧化松香钾皂的要求。
• From rosin purified abietic acid was prepared by using abietic acid as stared material acylamino surfactant was synthesized by maleric anhydride and diethanolamine.
  用松香纯化得到的松香酸(枞酸)与马来酸酐反应得马来海松酸;再与二乙醇胺反应制得松香马来酰胺基乙醇表面活情剂.
• Conjugated unsaturation of abietic resin acids can be removed through catalytic hydrogenation to overcome the shortcomings of oxidation and color degradation in rosin.
  将松香催化加氢可去除枞酸型树脂酸的共轭不饱和性,克服其易于氧化变色的缺点。综述了40多年来国内外对松香催化加氢反应的研究进展。
• The best technical condition of the reed pulp is in 47°SR, wipped off primary fines and added secondary fines up to 10%, meanwhile, adding stuffings (abietic acid, vitriolic aluminium, French chalk).
  漂白芦苇浆抄造文化用纸的最佳工艺条件为：在打浆度为47°SR时去除一级细小纤维，加入10%25的二级细小纤维，同时加入填料（松香胶、硫酸铝、滑石粉）。
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