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本环保型染色剂的特征是无盐无碱,不会污染环境。
The environment-friendly colorant is characterized by being free from salts, alkalis and environmental pollution.
youdao
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本环保型染色剂的特征是无盐无碱,不会污染环境。
The environment-friendly colorant is characterized by being free from salts, alkalis and environmental pollution.
youdao