Diaphragm
The Optical Dictionary · 1904 · p. 5
A perforated disc or metal plate used to cut off marginal rays.
Bu kavram başka kaynaklarda da geçiyor
Stedman's Medical Dictionary: A Practical Medical Dictionary (1920)
Hawkins' Electrical Dictionary (1915)
The American Illustrated Medical Dictionary (1913)
The Nurse's Dictionary of Medical Terms and Nursing Treatment (1909)
Webster's Condensed Dictionary- A Condensed Dictionary of the English Language (1909)
Chamber's Twientieth Century Dictionary (1908)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
Explanation of Terms Used in Entomology (1906)
Chandler's Encyclopedia (1898)
The Student's Medical Dictionary (1896)
The Standart Electrical Dictionary (1892)
An Illustrated Encyclopedic Medical Dictionary (1892)
Webster's Practical Dictionary- A Practical Dictionary of the Englih Language (1884)
Zell's Condensed Dictionary (1879)
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