| 单词 | radar signal |
| 释义 | > as lemmasradar signal radar signal n. ΚΠ 1945 Oakland (Calif.) Tribune 21 Jan. a11/3 Forty of us were left on the sub when it picked up a radar signal that a plane was in the vicinity and dived. 1969 Times 25 Mar. 12/6 By bouncing radar signals off Venus, scientists from the United States have counted the numbers of electrons in the space between the planets. 2000 G. Butler & F. McManus Psychology ii. 16 These measures..have many practical uses, for example in training air traffic controllers, whose decisions about the presence or absence of a radar signal may make the difference between a safe landing and a disaster. < as lemmas |
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