现存化学物质欧洲数据库,闪点，蒸汽压力的概念是什么?用英文说出概念

The flash point of a flammable liquid is the lowest temperature at which it can form an ignitable mixture in air. At this temperature the vapor may cease to burn when the source of ignition is removed.
-闪点
Vapor pressure is the pressure of a vapor in equilibrium with its non-vapor phases. All solids and liquids have a tendency to evaporate to a gaseous form, and all gases have a tendency to condense back.
-蒸汽压力

这样应该足够了