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单词 radiometer
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ra•di•om•e•ter  (rā′dē omi tər),USA pronunciation n. 
  1. Optics, Physics, OpticsAlso called Crookes radiometer. an instrument for demonstrating the transformation of radiant energy into mechanical work, consisting of an exhausted glass vessel containing vanes that revolve about an axis when exposed to light.
  2. Optics, Physicsan instrument for detecting and measuring small amounts of radiant energy.
  • 1870–75; radio- + -meter
ra•di•o•met•ric  (rā′dē ō metrik),USA pronunciation adj.  ra′di•ome•try, n. 

Collins Concise English Dictionary © HarperCollins Publishers::
radiometer /ˌreɪdɪˈɒmɪtə/ n
  1. any instrument for the detection or measurement of radiant energy

radiometric /ˌreɪdɪəʊˈmɛtrɪk/ adj ˌradiˈometry n
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更新时间:2024/11/11 9:08:02