Longwall gate road stability in a steeply pitching thick coal seam with a weak roof
Our rough guess is there are 8,250 words in this book.
At a pace averaging 250 words per minute, this book will take 0 hours and 33 minutes to read. With a half hour per day, this will take 1 days to read.
How long will it take you?
This book will take an estimated to read at a reading speed averaging words per minute. With 30 minutes per day, this will take to read.
Enter your reading speedYou can take one of our WPM reading speed tests to find your reading speed.
Create a free account to track your reading progress, build your reading list, and set reading goals.
Author
Contributions
- DeMarco, Matthew J. - Contributor
- United States. Bureau of Mines. - Contributor
Publication
1995 - U.S. Dept. of the Interior, Bureau of Mines, Washington, D.C.?, District of Columbia
Language
English
Word Count
8,250 words, Guess
Page Count
33 pages
Physical Format
Microform
Identifiers
- Open LibraryOL15424555M
Subjects
Topics
Longwall miningGate roads (Mining)Ground control (Mining)Longwall mining -- WyomingGate roads (Mining) -- WyomingGround control (Mining) -- Wyoming
Places
Series Statement
- Report of investigations -- 9580.
- Report of investigations (United States. Bureau of Mines) -- 9580.
Reader Reviews
No reviews yet for this book.
Be the first to share your thoughts!