In the paper orthographical method was used to study the control of smokegeneration from poly (vinyl chloride).
本文采用正交实验的方法,研究了聚氯乙烯发烟量的控制。
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Just remember that if you do continue to smoke, even a little bit, another generation of American kids will think it's cool, and the nation will have even higher health-care bills in the future.