These are removed at the help of activated charcoal filters aboard the station.

这些在空间站的活性炭过滤器的帮助下被移除。

One way to extract heavy metals like lead from polluted water is to pass that water through charcoal filters.

从被污染的水中提取铅等重金属的一种方法是通过木炭过滤器。

The other, a charcoal filter that absorbs odors, should be replaced every six months.

另一个是吸收异味的木炭过滤器， 应每六个月更换一次。