submain entry References submain entry mining Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: coal mining/ Ground control and roof supportSubmain entries can be regarded as feeders from the mains that subdivide each major area. From the submains, panel entries take off to subdivide further a block of coal into panels for orderly coal extraction. Read MoreSubmain entries can be regarded as feeders from the mains that subdivide each major area. From the submains, panel entries take off to subdivide further a block of coal into panels for orderly coal extraction. Read More
