BALLAST
Adair's new Encyclopedia · 1923 · p. 7
heavy material placed in hold of ship for stability; sand carried in balloon, and thrown out to ensure rising; gravel on slag bed for railway track.
Bu kavram başka kaynaklarda da geçiyor
French-English Dictionary of Military Terms (1918)
French-English and English-French Commercial Dictionary (1918)
Hawkins' Electrical Dictionary (1915)
The Slang Dictionary Etymological Historical and Anecdotal (1913)
A Dictionary of Aviation (1911)
Chamber's Twientieth Century Dictionary (1908)
The American Dictionary and Cyclopedia (1907)
Chandler's Encyclopedia (1898)
Illustrated Marine Encyclopedia (1890)
Etymologisches Wörterbuch der deutschen Seemannssprache (1882)
Zell's Condensed Dictionary (1879)
Dictionary of Science, Literature and Art (1854)
Dictionary of Science, Literature and Art (1842)
Water-ballast
—
French-English Dictionary of Military Terms (1918)
ballast-thrower
—
A Dictionary of Aviation (1911)
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