Actions for Coal Mining Information on Communist China from "Mei-K'uang Chi-Shu" and "Mei-T'An Kung-Yeh" [electronic resource].
I. COMPRESSED AIR SPRAYING OF SLURRY (CEMENT) TO SHORE SHAFTS AND TUNNELS -- II. BASIC EFFORTS TO IMPROVE TECHNIQUES IN SMALL COAL MINE OPERATIONS by Hua-lin Leo -- III. COAL WASHING IN LOCAL OPERATIONS -- IV. SECTIONS IN ARTICLES ON VARIOUS PROVINCES.
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