Hg: Symbol for the metallic element mercury.
The abbreviation "mm Hg" means millimeters of mercury, the height of a column of mercury, as in a blood pressure reading.
Mercury is poisonous to people. See Mercury poisoning.
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Basic information, atomic structure, and isotopes.
Create a project and commit $ hg init (project-directory) $ cd (project-directory) $ (add some files) $ hg add $ hg commit -m 'Initial commit'
addremove hg addremove [OPTION]... [FILE]... Add all new files and remove all missing files from the repository. New files are ignored if they match any of the patterns in ...