meltdown

/ˈmɛltˌdaʊn/

severe overheating of the core of a nuclear reactor resulting in the core melting and radiation escaping

Chinese meaning: 核反应堆堆芯熔毁；崩溃

The nuclear meltdown in Chernobyl had devastating environmental consequences.

切尔诺贝利的核反应堆堆芯熔毁造成了毁灭性的环境后果。

Strict safety regulations are essential to prevent a reactor meltdown.

严格的安全规定对于防止反应堆熔毁至关重要。