The ends of the tubular furnace are closed to minimize convection currents inside the furnace.

把管式炉的前后端盖紧,是炉内的对流减少到最低限度.

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To introduce a plan for designing tubular furnace for laboratory and its automatic temperature control unit.

介绍一种试验室用管式炉及其自动控温装置的设计方案.

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