以下为句子列表：
英文: A federal judge in Los Angeles issued an injunction preventing the navy from using high-powered sonar in training exercises off the coast of southern California .
中文: 洛杉矶的一名联邦法官发布一项禁令，禁止海军在加利福尼亚南部海岸训练时使用大功率声纳。
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英文: A high-powered magnetic chip was fitted in the anti-snore apparatus. Using magnetism to activate nasal tissue, its curative efficacy is obvious.
中文: 止鼾器内植入由微量元素和磁性材料合成的高性能治疗芯片，刺激鼻部组织，止鼾效果显著。
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英文: All the planes could jam the high-powered signal sent by radar.
中文: 这些飞机都能干扰雷达发出的大功率信号。
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英文: Before 1980, a single tower with a high-powered transmitter might cover an entire city, but limited spectrum availability meant that it could not serve many customers.
中文: 1980年代之前，一座有著高功率发送机的无线电塔，就足以涵盖整著城市，但可取得的频谱有限，因此能服务的顾客不多。
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英文: But he is also committed to recording and understanding his subject by a very high-powered mode of formal analysis. . . which obliterates all traces of his personal experience and truly effaces the human features of his subject, a given primitive society.
中文: 但是他也必须经由极端严苛的形式分析来记录、了解他的研究对象…这同时抹除了他的个人体验，也真正抹除了研究对象（也就是既存的原始社会）的人性面向。」
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