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Christian Lorkowski, the sender of this
photo, in the practice gallery of West colliery. In the background you can
see a suspension railway that is moving along a rail that is attached to the
ceiling of the roadways. These machines have a very high payload of several tons.
A small part of the rail can be seen above Christian's head. If you want to have
an explanation of the functions of a tunnel for practice,
please take a look at the
previous photo.
© Christian Lorkowski
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