You must reburn to Rome tomorrow.

你明天必须回罗马。

There existed an optimum value (0.8-0.9) for reburn zone stoichiometric coefficient.

再燃区过量空气系数存在一个最佳值（0．8～0．9）；

The NOx reduction efficient increased with the increase of the reburn heat input and the reburn zone temperature.

脱氮效率随着再燃量的增加而增大，随着再燃区温度的增加而增大；

The principle, feature and shortcoming of traditional natural gas reburn technology were introduced. The major application projects of natural gas reburn in the world were listed.

介绍了常规天然气再燃技术的原理、特点及缺点，列举了国外主要天然气再燃的应用项目。

The factors that impact the reburning effectiveness are analyzed, such as the natural gas percentage of boiler heat input, air stoichiometry, reburn zone temperature and residence time etc.

研究分析了天然气再燃效果的影响因素：包括天然气投入的比例、空气的化学当量比、再燃区的温度、烟气在再燃区的停留时间等。