| 摘要 |
<p>The device has occultation sheets (21, 22) mounted on roller tubes, which are mounted on a foldable cassette. Integration units (211, 221) joint two adjacent edges of deployed parts of the occultation sheets, where the sheets are not jointed on their rolled part. A junction element (6) connects the integration units in a reversible manner. The sheets comprise an elastic portion carrying the integration units.</p> |
