| 摘要 |
Each of the cylindrical modules (M1,M2,M3) has a stationary half (W1) and a vertically rotating half (W2), the latter forming the door of the module. The movable half has a smaller radius (R2a) than the stationary one, is fixed to a bearing plate (P) with its bottom (B1), and moved around the vertical axle (Z) by rollers (K), sliding in a rail (SCH). One or more circular boards (FB) can be attached to the stationary half. The modules can be stacked on top of each other and placed on a column shaped stand.
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