Horstman DH. The relationship between exposure duration and sulfur dioxide induced bronch constriction in asthmatic subjects. Am Ind Hyg Assoc J 1988; 49(1): 38.是什么意思_Horstman DH. The relationship between exposure duration and sulfur dioxide induced bronch constriction in asthmatic subjects. Am Ind Hyg Assoc J 1988; 49(1): 38.在线翻译_英语_读音_用法_例句