结论：可变头位能显著提高声门的显露质量。

Conclusion: Changeable head position can improve the glottis visualization under direct laryngoscopy in a great degree.

youdao

助手可以轻轻地牵拉患者唇及颊的右侧，增加声门的可视度。

An assistant can gently pull the right side of the patient's lip and cheek to enhance visibility of the glottis.

youdao

使用混音器混合这两个信号，然后混合信号送入噪声门的旁链输入。

B. use a mixer to add the two signals, and then use mixed signal into a key input of a gate.

youdao