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Oleg Bardyshev, Valery Popov, Pyotr Druzhinin, Andrey Bardyshev
Pág. 31 - 35
Upon outspending of the service term by metro tunnel escalators, it is important to determine the degree of escalators wear and the term of remaining life. To ensure safety of metro tunnel escalators in such cities as Moscow and St. Petersburg it is requ...
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