污

• That ' s gonna stain . we ' re gonna need a mop
  这会沾污地板的。我们需要一个拖把。
• Testing method for colour fastness to alkali spotting
  耐碱斑污色牢度的试验方法
• Before installing needs cleaning tube , remove filth
  安装前需清洗管路、除去污物。
• Including damage by slings stains grease acids
  包括吊具斑污油脂酸蚀造成的损失
• Evaluating stain removal performance in home laundering
  家用洗衣机去污性能的评定
• Did the cleaning fluid work （ on that stain ）
  这种洗涤剂（对那块污斑）管用吗？
• To clean up or reduce the radiological contamination
  去污去除或降低放射性污染。
• General specification for antifouling paint on ship bottom
  船底防污漆通用技术条件
• Testing method for colour fastness to water spotting
  耐水斑污色牢度的试验方法