| 摘要 |
A device for producing thermal gradient in space divisions, characterized in that it is composed of a box (1) covered with an insulating layer (2), which has at least one partially open wall, around which a flexible gasket (4) is located, and inside the box (1), there is a heater (5) with adjustable power, which has a fan (9) with adjustable rotations on its external side, and a metal screen (8) on the other side and it is fitted with a heat meter (11) and at least two temperature sensors (12, 13), one of which is located inside the box (1).<IMAGE>
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