Now he is convinced that chronic, long-term distraction is as dangerous as cigarette smoking.
现在，他确认慢性的长期分心就像吸烟那样有害。
Methods the chronic bronchitis of the mice was induced by sole cigarette smoking under the conditions of cold and room temperature.
方法：在寒冷与室温不同的条件下单纯用香烟熏吸造成小鼠的慢性支气管炎。
The effect of chronic passive cigarette smoking on pulmonary hemo-dynamics and vasoreactivity was studied in SD rats.
本实验研究长期被动吸烟对SD大鼠肺血流动力学和肺血管反应性的影响。
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