In the paper orthographical method was used to study the control of smoke generation 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.

要记住，如果你继续抽烟，即使只抽一点，全美国的下一代都会觉得抽烟是件很酷的事，那么美国在未来就会产生更高的医疗费支出。

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The paper presents a method on real time generation of dynamic dense smoke based on aerodynamics and the particle system theory.

基于气体动力学和粒子系统理论，本文给出了一种实时生成动态浓烟的方法。

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But if we are to succeed, we should understand: The campaign against obesity will have to look a lot less like the campaign against smoking (which involves just one decision, to smoke or not to smoke) and much more like the generation-long campaign against highway fatalities, which required the redesign of cars, the redesign of highways, and changes in personal behavior like seat-belt use and drunk driving.

CNN: Why we're getting fatter -- and what to do about it