桥梁底部常年隐匿于阴影之中，GPS信号被混凝土结构阻隔，定位误差可达数十米——这曾是无人机桥下检测的“死亡禁区”。但在今天，随着多传感器融合技术的突破，无人机桥梁检测正以毫米级精度突破桥下信号盲区的桎梏，穿透这片信号黑洞。每一次桥梁的安全通行，都离不 ...

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GAZA, April 24 (Xinhua) -- As regional and international mediation intensifies to reach a lasting ceasefire in the Gaza Strip, many Palestinians are expressing cautious hope that current diplomatic ...

SANAA/JERUSALEM -- Yemen's Houthis on Wednesday claimed responsibility for the "missile and drone attacks" on "vital targets" in Israel's cities of Haifa and Tel Aviv, which reportedly triggered ...