Oral nasal cup reduces fogging and lessens dead air space, limiting re-breathing of exhaledair.
口腔和鼻腔喷雾杯减少减轻死领空,限制重新呼吸呼出的空气。
2
To force exhaledair through a liquid held in the back of the mouth, with the head tilted back, in order to cleanse or medicate the mouth or throat.
漱喉呼气时通过含在口腔后部的液体,头向后倾斜,以达到清理或治疗口腔或咽喉的目的。
3
The gas nitric oxide (NO) is produced in increased amounts in certain types of inflammatory responses and its presence in exhaledair can be demonstrated.