Chinese oil的用法和樣例：
例句
- The use of tung oil for lighting dwellings has seen its day.
用桐油照明的時(shí)代已經(jīng)過(guò)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.
桐油的共軛雙鍵具有極強的反應活性，易與苯酚芳環(huán)上鄰或對位的活性氫發(fā)生傅氏取代反應。
