chronicityn.慢性长期性.chronicadj.长期的；慢性的；惯常的Chronic dentin caries慢性牙本质龋Chronic pericoronitis慢性冠周炎Chronic HBV infectionchronic nasosinusitis慢性鼻窦炎chronic lymphangiitis慢性淋巴管炎Chronic scbizophrenia慢性精神分裂症chronic toxicity test慢性毒性检验,慢性毒性试验Chronical compression慢性压迫Chronic complications慢性并发症chronic epitympanitis慢性上鼓室炎