Avoid activities that result in swallowing excessair, such as smoking, eating quickly, chewing gum, and drinking carbonated beverages.
避免摄入过量空气的活动，如抽烟、快速进食、嚼口香糖和饮用碳酸饮料。
2
Influencing factors on heat efficiency of tubular heaters are analyzed, which mainly include excessair factor, imperfect combustion and exhaust temperature.
分析了影响管式加热炉热效率的因素，主要包括过剩空气系数、不完全燃烧、排烟温度等。
3
Different methods for excessair coefficient given in different literatures have made confusions in the concept and values of excessair.