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1·Without the dissolving of the turpentine oil, the solid state rosin can not seep out from the wood.

失去了松节油溶解作用的固态松香，在木材中不再渗出。

2·Semifluid mixtures of organic compounds consisting of resins dissolved in a volatile oil, turpentines can be distilled into the volatile oil of turpentine and the nonvolatile rosin.

它是半流质的有机化合物，由树脂在挥发性油中溶解而成，松脂可以被提炼成松脂挥发油和非挥发性松脂。

3·The important role of rosin, oil of turpentine, tannin, activated carbon of forest chemical industry in national economy are point out.

林化产业在我国民经济中居于重要地位，在国际市场上也占有相当份额。

4·Rosin modified alkyd resin prepared by soybean oil stocks had reliable performance and stable quality.

以大豆油脚为原料，研制的松香改性醇酸树脂，性能可靠、质量稳定。

5·Release features and surface topography of coated urea with rosin and tung oil as film-forming materials;

研究了化学镀锡预镀溶液的组成和工艺条件对镀层厚度和表面形貌的影响。