1. a yellow oil obtained from the seeds of the tung tree. 
   从桐树种子中榨取的一种黄色的油。
2. Article 17 Water and soil conservation measures must be adopted to prevent soil erosion when preparations for afforestation, tending of young growth, and cultivation of commodity trees such as oil-tea camellia and tung tree are done on hillsides with a slope of above 5 degrees. 
   第十七条　在五度以上坡地上整地造林，抚育幼林，垦复油茶、油桐等经济林木，必须采取水土保持措施，防止水土流失。
3. The use of tung oil for lighting dwellings has seen its day. 
   用桐油照明的时代已经过去了。
4. The main products of the district are wool, cotton, timber and tung - oil. 
   这个地区的主要产品是羊毛,棉花,木柴和桐油。
5. a thick oil comprised of linseed, tung, or soya oils which have been heated to over 300 C. 
   一种浓稠的油，由加热到摄氏度以上的亚麻子、桐树或大豆的油构成。

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