单词ventless
adj.: 无出口的
无出口的
In Vent-less there is no vent. Ventless suit can restrict movement like raising your arm or sitting.
无衩口西装就是没有衩口的,它能限制人们的活动,如胳膊的动作和坐时的动作。
Ventless Firebox Enclosures for Gas-Fired Decorative type Unvented Room Heaters
燃气装饰型非通风室内加热器用非通风外壳