1·However, simultaneously monitoring nitric oxide, carbon monoxide,hydro-peroxides, nitrites, nitrates, pentane and ethane in the breath, wouldallow a much more definitive diagnosis of asthma.
无论如何，同时地检测呼吸中的氧化一氮、一氧化碳、,过氧化氢物、亚硝酸盐、硝酸盐,、戊烷和乙烷，将能对哮喘做确定性的诊断。
3·Benzene, cyclohexane and normal pentane etc. are frequently used as entrainers in industrial production of anhydrous alcohol through constant boiling and fine distillation.
工业生产中常用苯、环己烷、正戊烷等作夹带剂进行恒沸精馏生产无水乙醇。