Sympiesometer
The Optical Dictionary · 1904 · p. 20
(a) A syphon-like pre ure gauge used for determining the velocity of a current. (b) A short syphon barometer havying the Torr i cell i an vacuum replaced by gas or air.
Bu kavram başka kaynaklarda da geçiyor
A Dictionary of Aviation (1911)
The American Dictionary and Cyclopedia (1910)
Chamber's Twientieth Century Dictionary (1908)
Nuttall's Standard Dictionary of the English Language (1890)
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