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| personnel locator beacon (紧急无线电定位信标，通常用于双向接听设备。这种信标或者由机组人员亲自携带，或者放在他们的救生设备中，而且能够提供自导引信号以辅助搜索和营救工作) | |||
| personal locator beacon; personnel beacon; personnel locator beacon | |||
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个人 定位信标 : 1 phrase in 1 subject |
| Technology | 1 |
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