企业主要生产船舶内装材料，包括墙板、天花板、防火门、检修口、预制舱室、卫生单元等产品。
The company mainly produces ship contents materials, including wallboards, ceilings, fire doors, maintenance door, prefabricated cabins, health units and other products.
必须对控制加热器和两个转化炉的耐火材料衬里进行检修。
Repairs to the refractory linings of the control heater and both reformers are needed.
产生共振，既有设计的不足，也有材料、运行、检修方面的问题。
The reason of producing resonance is both the inadequacy in design and the problem about material, running, repairing.
产生共振，既有设计的不足，也有材料、运行、检修方面的问题。
The reason of producing resonance is both the inadequacy in design and the problem about material, running, repairing.
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