发往美国的太阳镜（Sunglasses）在清关时突遭FDA扣留，原因直指“未能证明符合冲击测试标准”？您遇到的正是美国市场对眼镜类产品最核心、也最常被忽略的强制性安全法规——21 CFR 801.410 落球测试（Drop Ball Test）。本文将由资深合规专家为您彻底拆解：什么是落球测试、为何FDA如此重视、如何快速获得认证以解救被扣货物，并建立长期合规策略，确保清关畅通无阻。

MOSCOW, Dec. 30 (Xinhua) -- Russia's upgraded light multi-purpose helicopter Mi-34M1 has successfully completed its first test flight, the Russian Ministry of Industry and Trade said on Tuesday.

WUHAN, Dec. 26 (Xinhua) -- Central China's Hubei East Lake Laboratory on Friday announced a groundbreaking achievement in high-speed maglev technology, with its test line accelerating a 1.1-tonne ...