symbols, acronyms & abbreviations
Obsolete symbol for the roentgen.
National Research Council.
A Glossary of Terms in Nuclear Science and Technology.
New York: American Society of Mechanical Engineers, 1955.
Page 147.
| home | | | symbol index | | | to contact Sizes  |
| | acknowledgements | | | help | | |
Copyright © 2005 Sizes, Inc. All rights reserved.
Last revised: 17 January 2005.