chronicityn.慢性长期性.chronicadj.长期的；慢性的；惯常的chronic valvulopathy慢性心瓣膜病chronic nepthropathy慢性肾病Chronic cor pulmonary慢性肺源性心脏病chronic renal faioure慢性肾功能不全Chronic MCA occlusion慢性闭塞chronical hepatitis B慢性乙型肝炎chronic labyrinthitis慢性迷路炎Chronic renal failm'echronic trade deficit长期贸易逆差Chronic regurgitation慢性反流