名词
中文翻译：酸性染料
同义词：
['acid dye', 'acid fixative', 'acid-resistant stain']
例句：
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1. Theacid proof stain on the wall is still visible after several years of exposure to sunlight.
墙上的酸性染料在经过几年的阳光照射后仍然可见。
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2. The acid proof stain on the fabric will not fade even after washing many times.
这种织物上的酸性染料即使经过多次洗涤也不会褪色。
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3.The acid proof stain is used in industrial processes to prevent the color from bleeding through.
酸性染料用于工业过程中，以防止颜色渗透。