吹吸式排风罩 push-pull hood
吹吸式集气罩 blowing and sucking gas trap hood
吹吸罩
Blow-and-suction hood
以上为机器翻译结果，长、整句建议使用 人工翻译 。
介绍了一种酸洗车间废气控制和净化方法，说明利用吹吸罩和循环空气能有效地控制废气。
A method of controlling and purifying the waste gas in the acid pickling shop was introduced. Blow draw cover and cycle air are highly efficient in processing the waste gas.
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