直燃机排烟温度过高，不利于节能，在烟道上加设余热回收装置。
The flue gas temperature of direct-fired machine is too high to save energy.
直燃机排烟温度过高，不利于节能，在烟道上加设余热回收装置。
The flue gas temperature of direct-fired machine is too high to save energy. A recovery device of residual heat is installed in the flue.
余热锅炉入口烟道的不同结构对其速度场的分布会产生重要的影响。
The structure of HRSG inlet duct has a great effect on its velocity field.
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