单词 | microwave refractometer |
释义 | microwave refractometer [`mī·krǝ´wāv ´rē´frak`täm·ǝd·ǝr] ELECTROMAGNETISM An instrument that measures the index of refraction of the atmosphere by measuring the travel time of microwave signals through each of two precision microwave transmission cavities, one of which is hermetically sealed to serve as a reference. |
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