单词：tung oil
tung oil的用法和样例：
例句
- 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。
- The conjugated double bond in tung oil molecular with high activity can take place substitution reaction with one of ortho or para hydrogens of phenol.桐油的共轭双键具有极强的反应活性，易与苯酚芳环上邻或对位的活性氢发生傅氏取代反应。
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