A ring

Noun

(military) The innermost circle of a nuclear explosion, within which all structures are destroyed.

Japanese Meaning

（軍事用語）核爆発において、全ての構造物が破壊される中心部の円状の領域。

A ring, the innermost circle of a nuclear blast in which all structures are destroyed, swallowed the downtown district.

核爆発の最も内側の円（すべての建造物が破壊される領域）が市街地を飲み込んだ。

Sense（1）

(military) The innermost circle of a nuclear explosion, within which all structures are destroyed.

A rings

（ plural ）