दाग क्या है ? सूती कपड़े से निम्नलिखित दागों को निकालने की प्रक्रिया के चर
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पाना
What is a Stain ? Describe the steps for removing the follow
fabric.
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A stain is a discoloration that can be clearly distinguished from the surface, material, or medium it is found upon. They are caused by the chemical or physical interaction of two dissimilar materials. Staining is used for biochemical research, metal staining, and art (e.g., wood staining, stained glass).
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