The quantitative relation between the surface tension and the number of carbon atoms of normal paraffin hydrocarbons at different temperature are studied systematically in this paper.
不同温度下，正链烷烃的表面张力与碳原子数间定量关系可表示为：由该式计算的结果与文献值吻合，并分析讨论了式中各系数的物理意义。
Many plus-strand RNA viruses are the causative agents of some highly contagious diseases in human,animal and plant.
许多正链RNA病毒是严重危害人类健康的病原体,是造成经济植物动物死亡的致病因子。
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