短語(yǔ)詞組短語(yǔ)boil -off gum content 沸溶法含膠量cryogenic boil -off 低溫液躰蒸發(fā)alkali boil -off 堿煮練propellant boil -off 推進(jìn)劑蒸發(fā) 返回 boil-off