oxygen-air mixture
... breathing mixture 释义：呼吸用混合气 oxygen-air mixture 释义：氧空气混合气 population mixture 释义：混合群体(落) ...
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探讨了在液化石油气混空气系统中采用氧分析仪或相对密度仪控制混合气热值的可行性。
Feasibility of using oxygen analyzer or gravitometer for calorific value control of LPGair mixture is studied in the system of mixing LPG and air.
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