They produce everything from small vent covers that would appear in a house to wall-sized, industrial air intake units.

INFASA公司生产的产品包括从小型的通气管盖板到整个墙壁大小的工业型通风装置。

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It originates from the wall of the cloaca directly in front of the vent on the belly side, and curls backwards so the shaft and head lies directly beneath the vent opening.

它起源于泄殖腔壁侧面直接在前面的肚皮上发泄，和卷发向后使轴与头部直接位于下方的通风口开幕。

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My eyes would always be drawn to the 2 x 2 foot air vent on the wall where it met the ceiling and went on through the labyrinth of the building.

我不由自主会注意到墙上那个紧挨着房顶的2 信×2英尺大的气孔，那气孔通向这个如迷宫般的建筑的各个地方。

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