It follows that if we guide air through a narrowing slot it must go faster and faster to get through and if the exit is smaller than the entrance we have a definite suction at the exit.
它如下，如果我们引导的空气通过一个缩小插槽必须去快，获得通过的话，出口小于入口，我们有一定的吸力在出口。
The table (12) comprises guiding means suitable for urging the product to be folded towards the first guide surface (32) and a first main suction hole (36) which opens on the first guide surface (32).
该工作台(12)包括适用于迫使要被折叠产品移向第一导向表面(32)的导向装置以及开在所述第一导向表面(32)上的第一主抽气孔(36)。
The adjustable suction pot comprises a suction pot, a guide tube, an air extracting device and an adjusting valve.
本实用新型由吸罐、导管、抽气装置、调节阀组成。
The adjustable suction pot comprises a suction pot, a guide tube, an air extracting device and an adjusting valve.
本实用新型由吸罐、导管、抽气装置、调节阀组成。
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