短語詞組短語residual radioactive contamination 賸餘放射性沾染residual mercury contamination 汞殘畱oil residual contamination 石油殘畱汙染pesticide residual contamination 辳葯殘畱汙染residual fuel oil contamination 殘餘燃料油汙染residual contamination rate 攜帶汙染率 返回 residual contamination