vapores蒸汽vaporn.蒸汽；水蒸汽v.蒸发；汽化vapor tight light不透蒸汽灯vapor sensitivity气体敏感性Vapor-condenser水汽凝结器vapor suppression蒸气压力系统vapor stream pump蒸汽流泵vapor evaporation气相蒸发vaporization heat蒸发热,汽化热vapor composition蒸汽组成vaporization room蒸发室vapor fractometer汽相分离计