oxygen isotope ratio氧同位素比;氧同位素比率
Oxygen Attenuation Ratio氧衰减率
oxygen extraction ratio氧提取率
oxygen pressure ratio regulator氧气压力比调节器
oxygen enrichment ratio富氧率
oxygen blowing ratio输氧量
oxygen enhancement ratio OER氧增强比
oxygen coal ratio氧煤比
oxygen utilization ratio氧利用比率;释义氧利用比率