Drum type laser typesetter: it outputs positive or negative films of high quality.
滚筒型激光照排机：输出质量很高的正片或负片。
Combine structure control theory do the research on earthquake responses control for a drum type heating furnace.
本文结合结构控制的思想，对火筒式加热炉进行基础隔震的地震响应控制的研究。
This paper introduces one kind of drum type boiler dynamic model structure, which considering the system nonlinearity.
探讨了一种充分考虑系统非线性特性的汽包锅炉动态模型。
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