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underground mark . . . 3 matches
...ground, beneath a [[station]]. Think of it as an emergency backup system. If the [[surface mark]] is ever disturbed or destroyed, the undergound mark may be used to re-establish t...

0.5k - rev: 2 (current) last modified: 2009-03-21 21:03:19

Glossary . . . 1 match
... [[stack]], [[stamping]], [[standpipe]], [[station]], [[steel pin]], [[steeple]], [[surface mark]] ---- . <<Anchor(T)>> . T<<BR>> [[tidal station]], [[to reach|to-reach]], [[top...

3.0k - rev: 25 (current) last modified: 2009-03-21 21:03:19