Mining.
a set having 12 timbers joined to form eight 90° solid angles.
[ 1815-25, Amer. ]
SQUARE SET
Meaning of SQUARE SET in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012
Mining.
a set having 12 timbers joined to form eight 90° solid angles.
[ 1815-25, Amer. ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012