Pillar design methods for longwall mining
Our rough guess is there are 13,250 words in this book.
At a pace averaging 250 words per minute, this book will take 0 hours and 53 minutes to read. With a half hour per day, this will take 2 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
Publication
1990 - Dept. of the Interior, Washington, DC, District of Columbia
Language
English
Word Count
13,250 words, Guess
Page Count
53 pages
Identifiers
- Library of Congress Control Number89600380
- Open LibraryOL22071812M
Classifications
- LCCUSBMIC#9247 1990
Subjects
Reader Reviews
No reviews yet for this book.
Be the first to share your thoughts!