| 摘要 |
The construction is of timber or steel (iron). It has round timbers or similar constructional elements to act as traction connection (1) between supports (2) on the valley side and sills (3) on the mountain side, to render it self-supporting. Individual adaptation or site conditions on the mountain ate not necessary, so that the structure can be mass-produced in the valley. It does not require foundations, trenches, micro posts, or several mountain anchors, but is suspended from a single anchor of related dimensions.
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