Apparatus for monitoring the rails of a railway or tramway line
作者： Ettore Casagrande
DOI:
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摘要: A laser apparatus for monitoring the rails of a railway or tramway line, characterised by comprising at least two measurement units (4, 8) mounted on carriage and operating inner part (6), along which said is made to advance, unit processing signals transmitted units, each comprises one triangulation reading device.
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