| 释义 | DictionarySeeVis VYSE
 vis, vice, viseA spiral staircase generally of stone, whose steps wind around a central shaft or newel; a screw stair.VYSEThe speed for the best engine-out rate of climb. It should be marked on the ASI (air-speed indicator) as a blue radial line; it is often referred to as the blue-line speed. Also known as YYSL. See blue-line speed.MedicalSeevisLegalSeeVISVYSE
 | Acronym | Definition | 
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 | VYSE➣Velocity Y, Single-Engine (best single-engine rate-of-climb velocity; aviation) | 
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