• Penicillin is a highly effective broad-spectrum antibiotics, widely used in disease prevention and treatment of dairy cows.

    青霉素一种高效广谱抗生素类药物广泛应用于预防治疗奶牛疾病

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  • Penicillin is a highly effective broad-spectrum antibiotics, widely used in disease prevention and treatment of dairy cows.

    青霉素一种高效广谱抗生素类药物广泛应用于预防治疗奶牛疾病

    youdao

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