锅炉工制造，组装，架设，测试，维护和修理锅炉，容器，储罐，塔器，换热器和其他重型金属结构。
Boilermakers fabricate, assemble, erect, test, maintain and repair boilers, vessels, tanks, towers, heat exchangers and other heavy-metal structures.
型锅炉以其结构紧凑，占地小，安装周期短，运行维护方便等特点，在国内石油化工系统得到了广泛的应用。
D type boiler is widely used in petrochemical industry because of its characters of compact construction, less area occupied, short site installed period, easy operating and maintenance.
文章阐述了链条炉排锅炉分层给煤装置的选型、应用、维护方法及其效果。
The article explains the type selecting, the application, the maintenance method and the effect for the layered coal-feed device of the boiler.
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