| 摘要 |
A greenhouse comprising two roof halves ( 4, 4 ') together forming a roof ( 3 ) of V-shaped cross-section, which can be moved between a closed position and an open position, a special feature of said greenhouse being the fact that the roof ( 4, 4 ') can be moved independently of each other both in upward and in downward direction relative to the closed position within certain limits.
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