Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
On results of investigation for friability of coal face underground in Japan
Investigations on friability of coal, useful index in face workability, reported from 41 working spots; results classified by district or working system; friability in each case compared with working efficiency; method of designation proposed for workability of coal by friability. In Japan, English summary.
On results of investigation for friability of coal face underground in Japan
Investigations on friability of coal, useful index in face workability, reported from 41 working spots; results classified by district or working system; friability in each case compared with working efficiency; method of designation proposed for workability of coal by friability. In Japan, English summary.
On results of investigation for friability of coal face underground in Japan
Min Met Inst Japan -- J
Aida, T. (Autor:in) / Okamoto, T. (Autor:in)
1959
8 pages
Aufsatz (Zeitschrift)
Englisch
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