In the 1980s, the first air intake systems were offered and consisted of molded plastic intake tubes and a cone-shaped cotton gauze air filter.

在1980年代，进气系统第一次提出了模塑料进气组成，一个锥形棉质纱布管和空气过滤器。

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A device applicable to simple separation between oil and water of kitchens comprises a column type container (1), a piece of filter gauze (2), a hose (3), a hose clip (4) and a hose hook (5).

一种适用于餐厨油水简单分离的装置，包括一个柱式容器(1)、一个滤网(2)、一根软管(3)、一个软管夹(4)、一个软管挂钩(5)构成。

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Cotton gauze filter (stock replacement filter). Looking almost identical to the set up of a paper air filter, a cotton gauze filter is fitted and enclosed to a holder.

棉质纱布过滤(股票更换过滤)，看起来几乎相同的一篇论文的建立空气过滤器，过滤装置，棉质纱布附于持票人。

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