“passive communications satellite”的概念、定义、翻译、参考文献-科学参考

单词	passive communications satellite
释义	passive communications satellite [`pas·iv kǝ´myü·nǝ`kā·shǝnz ´sad·ǝl´īt] ^{AEROSPACE ENGINEERING} A satellite that reflects communications signals between stations, without providing amplification; an example is the Echo satellite. Also known as passive satellite.
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