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单词 ssr
释义

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SSR
SSR n. secondary surveillance radar.
ΚΠ
1962 Aeroplane 21 June 6/3 Secondary surveillance radar ( ssr), the so-called answer to the air traffic controller's prayer, does not appear to be so near, or as technically perfect, as one is led to believe.
1977 R.A.F. News 22 June 9 (advt.) Experience is required of approach and long range surveillance equipment plus SSR, HF, VHF and UHF radio equipments.
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S.S.R.
S.S.R. n. [Russian Sovétskaya Sotsialisticheskaya Respúblika] now historical Soviet Socialist Republic (cf. U.S.S.R. n. at U n.1 Initialisms 1a).
ΘΚΠ
the world > the earth > named regions of earth > Russia, the Russian Empire, or the Soviet Union > [noun] > a Soviet Socialist Republic
Russian Federation1886
S.S.R.1926
1926 Encycl. Brit. III. 429 The population of the Union of Socialist Soviet Republics and its principal parts was, in 1924... Ukraine S.S.R...27,700,000.
1947 Whitaker's Almanack 972/1 Uzbekistan comprises the former feudal states of Bokhara and Khiva and the Kara Kalpak S.S.R.
1977 R. Perry Dead End vi. 77 He elected to resume his studies in the Turkmen SSR.
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更新时间:2025/1/9 21:36:21