此次爆炸发生在这家博特尼亚工厂的低压恶臭气体传输管线上，当时正值该纸浆厂经过48小时保养停产之后的重新启动。
The explosion occurred on Botnia’s transfer line for weak malodorous gases when the mill was started up after a 48-hour maintenance shutdown.
城市废水管网系统中臭气的最常见的发生源主要有下水道总管道和泵站。
The most common emergence of odour comes from the Urban sewage system, mainly in the total pipelines and equipment for treatment.
速效去除水中的残饵和粪便，特别针对水白和水浊等现象，使水质快速恢复清澈透亮，祛除水质变坏后发生的腥臭气味。
It can remove the residual feed and excrement in water rapidly, clarify the white and muddy water to clear, and remove the stinking smell after water quality are deterioration.
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