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单词 radar beam
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radar beam
radar beam n.
ΚΠ
1942 R. L. Garman Land Mass Simulator (U.S. Govt. Declassified Doc. PB3817) 1 This applies primarily to land masses which subtend an angle larger than the radar beam.
1970 A. C. Clarke Glide Path (ed. 2) i. 13 Instead of slicing straight on out into space as the curve of the earth fell away beneath it, the radar beam was being bent down by some peculiarity of the atmosphere.
2004 Post-Standard (Syracuse, N.Y.) 29 Dec. b2/3 Data that records elevation with a kind of radar beam was also collected that year.
extracted from radarn.
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