一次空气 meaning in English
main air
main combustion air
mainair
primary air
primaryair
under-fire air
Examples
- Marianne was all the time busy in observing the direction of the wind, watching the variations of the sky, and imagining an alteration in the air .
玛丽安则一直忙于观察风吹的方向，注意天色的变化，幻想来一次空气的对流。 - Three - dimensional numerical simulation of indirect evaporative cooling process with condensation in primary airflow
一次空气有冷凝的间接蒸发冷却过程的三维数值模拟 - A extreme climatic calamity , terrible deterioration of visibility and air quality over prd , occurred from the end of oct . to the beginning of nov . 2003
2003年10月底至11月初，珠江三角洲出现了一次空气质量和能见度均十分恶劣的灾害性极端气候事件。 - It was still a technical problem on how to add the air to the reactor in so small pressure difference . in addition , the photocatalytic reaction efficiency was very low at the high speed . the reactor will be large , the price will be very high and the electricity will be enormously consumed during the photocatalytic - oxidation of h2s in the methane
主要原因是沼气中不含氧，使用时气体流速大，压差小，而用光催化氧化方法消除h _ 2s需要有相当量的氧参与，在压差很小的情况下，一次空气的加入存在技术困难；在高气体流速条件下，光催化效率低，若用光催化方法消除h _ 2s ，反应设备庞大，耗电量高，价格昂贵，农民难以负担。