Objective to find out the genotoxicity of main stream and sidestream of the cigarette.
目的确定香烟主流烟雾与侧流烟雾对小鼠的遗传毒性效应及两者遗传毒性的差别。
2
Objective To observe the changes of ventilation and respiratory dynamics in patients undergoing bronchial intubation with double channel catheter and monitored by SideStream Spirometry(SSS).
目的应用旁气流通气监测法(SSS)观察双腔支气管导管插管患者围术期呼吸功能变化。
3
Travellers get from one side to the other by walking across a footbridge that spans a little stream.