Nitric oxide is asign of asthma and other lung diseases, such as chronic obstructive pulmonarydisease, cystic fibrosis and bronchiectasis (the abnormal widening of airways).
氧化一氮是哮喘和其他肺疾病的表现，诸如慢性肺病、囊肿性纤维化和支气管扩张（气管的反常的变宽）。
2
Cystic fibrosis causes about half of all bronchiectasis in the United States.
囊性纤维化是美国约一半支气管扩张的原因。
3
Widespread bronchiectasis is typical for patients with cystic fibrosis who have recurrent infections and obstruction of airways by mucus throughout the lungs.