Trying to cool the reactors
嘗試冷卻反應堆

Cores in units 1, 2 and 3 heated up to the extent that the zirconium covering the fuel reacted with steam, releasing hydrogen gas. Hydrogen collected in the secondary containment buildings, where it exploded, blowing the tops off units 1 and 3, and damaging the cooling system of unit 2.
1、2、3號反應堆核心的溫度升高到了一定程度，使得覆蓋在燃料棒上的鋯元素與水蒸氣產生了反應，釋放出了氫氣。氫氣在第二層安全殼內聚集，最終爆炸，將1號和3號的頂蓋炸飛，損毀了2號的冷卻系統(tǒng)。

Primary containment vessels in units 1 and 3 are reportedly intact, but a structure in unit 2 has cracked, preventing water from fully covering the core.
報道中稱1號和3號的反應堆外殼是完好的，但是2號反應堆中的某個構架被炸壞了，致使水無法完全淹沒核心。

Attempting to cool the cores, engineers are flooding cores and their containment vessels with seawater and boric acid, which acts to dampen fission reactions.
為了冷卻核心，工程師們灌入摻了硼酸的海水，讓核心及安全殼浸沒在其內，以起到抑制裂變反應的作用。