为了减少气体的处理量，必须先将淋洗液喷入炼焦气收集管道，然后将炼焦气通过许多热交换器，以使其冷却。

To reduce the volume of gas handled, it has to be cooled by first spraying liquor into the collecting mains and then by passing the gases through a number of heat exchangers.

youdao

为了减少气体的处理量，必须先将淋洗液喷入炼焦气收集管道，然后将炼焦气通过许多热交换器，以使其冷却。

To reduce the volume of gas handled, it has to be cooled by first spraying liquor into the collecting mains and then by passing the gases through a number of heat exchangers.

youdao