痰是肺系疾病常见的致病因素。
咳嗽是肺系疾病中一个主要症状。
The cough is the lung is illness gets sick cardinal symptoms.
文献报道中麻黄汤治疗疾病达45种之多，其中以肺系疾病为多。
The Chinese ephedra decoction treats the disease and is up to more than 45 kinds in the document report.
肺系疾病是临床常见病、多发病，本类疾病难以根治且易反复发作，给社会和家庭带来沉重负担。
Pulmonary diseases are common in clinic. As we known, it's difficult to cure pulmonary diseases for theirs outbreak again and again-occurring disease, which add burden to the society and family.
慢性阻塞性肺疾病是老年人常见的呼吸系疾病，病死率极高，成为死亡的主要原因之一。
Chronic obstructive pulmonary disease (COPD) is a common condition among the old, which remains a main cause of death due to its high fatality.
慢性阻塞性肺疾病是老年人常见的呼吸系疾病，病死率极高，成为死亡的主要原因之一。
Chronic obstructive pulmonary disease (COPD) is a common condition among the old, which remains a main cause of death due to its high fatality.
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