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1·The typical troubles of forced draught fan and its driving motor are mainly introduced.

重点介绍了送风机和其驱动电机的典型故障及其特征。

2·Diagnosing method of forced draught fan trouble is described and application examples are given.

对送风机故障诊断方法作了说明，并给出了应用实例。

3·As forced draught was used, a distance less than 10 m from the venting duct to heading face was suitable.

采用压入式通风时，风筒口距工作面在10米以内较适宜。

4·The advantages of frequency speed control in forced draught fan for boiler in power plant are set forth by examples.

结合实例阐明了电站锅炉送风机采用变频调速的优点。

5·Heating boilers. part 3: gas - fired central heating boilers. assembly comprising a boiler and a forced draught burner.

供暖锅炉。第3部分：燃烧气体的集中供暖锅炉。锅炉和强制送风燃烧器组合设备。

6·Heating boilers. part 1: heating boilers with forced draught burners. terminology, general requirements, testing and marking.

供暖锅炉。第1部分：带强制送风燃烧器的供暖锅炉。术语一般要求试验和标记。