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词汇 signal box
释义 signal box ˈsɪɡnəlbɒks ☆☆☆☆☆高短语¹⁰⁶¹⁰⁰⁺
基本英英近义反义例句
n.铁路上的信号塔;警察或火警系统的警报箱

Noun:
a building from which signals are sent to control the movements of railway trains近义词 signal tower信号塔
用作名词The jamming technology works by sending out a radio signal so powerful that phones are overwhelmed and cannot communicate with cell towers.干扰技术就是能够发出无线信号,干扰与信号塔的联络。
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