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No 1 (2016) About a half-wave length of the bottom-hole core drill composed of structural elements of different stiffness Abstract  PDF (Eng)  similar documents
B. V. FEDOROV, D. R. KORGASBEKOV
"... in the "crests" half-waves of the bottomhole shell ribs. ..."
 
Vol 5, No 1 (2020) Findings of Studies on Wave Character of Pillar Support Pressure and Edge Parts of Coal Seams Abstract  similar documents
S. N. Lis
"... increasing distance from the source of the abutment pressure. At the same time, the half-wave length λ/2 ..."
 
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