进行油、气燃烧器的设计，激波吹灰器及其系统的设计，非标零件的设计；
1·At the same time, they issued smoke, inflamer produce a great lot of smother, so in fires, majority people got gas poisoning and asphyxiate and died.
同时发烟量大，在火灾中燃烧物产生大量浓烟使火灾中的大多数人员被有毒气体和烟雾熏倒窒息而身亡。