The seal air fans deliver a design pressure that is above the operating pressure in the flue work.
密封风机能使空气达到设定的压力，此压力应高于烟气在烟道中的运行压力。
2
The research on NOX removal from flue gas is becoming a hot issue of air pollution control presently.
烟气脱氮技术的研究已成为目前大气污染控制中的一个热点课题。
3
The equipment pipe and air and flue gas ducts etc. supplied by the contractor shall be made in maximum allowable dimensions to reduce the fabrication on site.