【化】 test for contamination
pollute; contaminate; empoison; stain; taint; vitiate
【计】 fouling
【化】 contaminate; contamination; pollute; pollution
【医】 contaminate; contamination; inquination; pollution
【经】 contamination
experiment; test; try; try on; try out; examination; experimentation; trial
trial run
【计】 breadboarding
【医】 probation; test; tria
【经】 test; trial