To do this, you should close the vents in the room.

为了做到这一点，你应该关闭通风口在房间内。

youdao

Use them in proprietary oil-warmers, or add a few drops to pieces of cloth and hang them in warm places, like over lamps (not too close to the bulb), on radiators or in front of your car air-vents.

在专用的香薰器里使用，或者滴几滴在布条上，把它们悬挂在温暖的地方，如灯具的上方(不要离灯泡太近)，或者放在散热器上和汽车的通风口处。

youdao

The first step is to close all vents and openings at the top of the hoistway to prevent water from entering the elevator shaft.

第一步是关紧电梯井道上方所有的排气口以及出口，防止水进入电梯井道。

youdao

And we're looking to increase production, as I said, so we can slowly close those vents and see how the containment cap is working and whether or not any oil is forced down by the pressure through the rubber seals, as we've talked about before.

WHITEHOUSE: Daily Press Briefing