| 摘要 |
A process is described for obtaining a mask which does not adhere to the upright facing of dams, which is intended for carrying out the repair of dams. The said process consists of a manner of repairing the upright surface of dams without the use of currently existing means, through the design of a non-adhering mask which is supported by a new profile, without the use of welds and seals and without the need, as is currently the case, to reduce the level of water in the lake for each repair.
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