vasi

Raised visibility range for VASI lights at night.

VASI(跑道两侧灯光)在夜间视距内会高于地面.

The regime-switching model about interest rate extends Vasicek and CIR models.

利率的结构转换模型是对Vasicek模型和CIR模型的推广.

Objective: Noninvasive positive-pressure ventilation ( NIPPV) is appositive-pressure ventilation with face mask or nose-face mask or other things.

目的：无创正压通气（noninvasive positive-pressure ventilation NIPPV）指通过面罩、鼻面罩或其他连接装置进行的正压通气。