Level
A Military Dictionary and Gazetteer · 1881 · p. 10
In mining, is a horizontal pa age or gallery.
Bu kavram başka kaynaklarda da geçiyor
Adair's New Encyclopedia (1923)
Stedman's Medical Dictionary: A Practical Medical Dictionary (1920)
Hawkins' Electrical Dictionary (1915)
Chamber's Twientieth Century Dictionary (1908)
Webster's Practical Dictionary- A Practical Dictionary of the Englih Language (1884)
Zell's Condensed Dictionary (1879)
Dictionary of Science, Literature and Art (1854)
Dictionary of Science, Literature and Art (1842)
A Military Dictionary (1810)
SPIRIT LEVEL
—
Adair's New Encyclopedia (1923)
Artillery Level
—
A Dictionary of Military Terms (1918)
Spirit Level
—
Hawkins' Electrical Dictionary (1915)
cloud-level
—
A Dictionary of Aviation (1911)
equilibrium-level
—
A Dictionary of Aviation (1911)
Y-level
—
Chamber's Twientieth Century Dictionary (1908)
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