still, to protect the cultural and naturella minnesmerken or foremal jemte arrangements for implementation of the

摘要

The arrangement is for the protection of cultural and natural monuments which have a chamber defined by one or more walls. The chamber contains tunnels (1) with a further chamber for visitors. The space between the first and second chambers is wholly sealed off. The arrangement can also include a sluice chamber for visitors to the second chamber, and which can be used for cooling purposes.