然后，将煤气经过两个氨洗涤器。

The gas then passes through two ammonia washers.

将洗涤器的一面涂上安息香并将它贴到皮肤上。

Paint one side of washer with benzoin and apply this side to skin .

介绍旋风除尘与文丘里洗涤器的设计选型。

The designs of cyclone and Venturi are presented.

然后，将煤气经过两个氨洗涤器。在第一个浸洗器中，喷淋洗液以吸收煤气中的氨。

The gas then passes through two ammonia washers. In the first washer, liquor is sprayed to absorb ammonia from the gas.