تعداد ۱ پاسخ غیر تکراری از ۱ پاسخ تکراری در مدت زمان ۱,۴۹ ثانیه یافت شد.

1. Mine ventilation,Rudnichnaia ventiliatsiia. English

Author: Skochinskii, A. A. )Aleksandr Aleksandrovich(, 4781-0691

Library: Library of Niroo Research Institue (Tehran)

Subject: ، Mine ventilation

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