国际原子能机构：在停电持续3.5小时后，扎波罗热核电厂的外部电源已恢复，但乌克兰的核安全仍然极其脆弱。

Core Insights - The external power supply to the Zaporizhzhia Nuclear Power Plant has been restored after a power outage lasting 3.5 hours, indicating a temporary resolution to the immediate issue [1] - Despite the restoration of power, Ukraine's nuclear safety remains extremely fragile, highlighting ongoing concerns regarding the stability and security of nuclear facilities in the region [1] Industry Implications - The incident underscores the vulnerabilities in Ukraine's nuclear infrastructure, which could have broader implications for energy security and regulatory oversight in the nuclear sector [1] - Continuous monitoring and improvements in safety protocols may be necessary to mitigate risks associated with power outages and ensure the integrity of nuclear operations in Ukraine [1]