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1·More than that, the vaccin adopts a kind of dosage form by special process, which could overcome the destruction from gastric acidity or pepsin, thereby render the vaccin more effective and stabler.

其次，它采用特殊工艺剂型，克服了胃酸、胃蛋白酶对疫苗的破坏作用，提高了疫苗的有效性和稳定性。