vt. 净化, 排除污染

[ verb ]
rid of contamination
<verb.change>
The soil around the housing development had to be decontaminated by the city

decontaminate \de`con*tam"i*nate\
(d[-e]`k[u^]n*t[a^]m"[i^]*n[=a]t), v. t.
To remove contamination or contaminants from, by a cleansing
process; -- usually used of radioactive, infectious, or toxic
materials; as, to decontaminate clothing worn by persons with
infective disease; decontaminate an area of PCB's after
explosion of a transformer.
[PJC]