从那以来，救火车、混凝土搅拌卡车等都被用来向反应堆与燃料棒储存处浇灌成千上万吨的海水。
Since then, fire engines and concrete trucks have been used to pour thousands of tons of seawater onto the reactors and into the fuel rod pools.
日本专家说，反应堆内的燃料棒完全与空气接触并融毁。
Japanese experts say the fuel rods inside the reactor were fully exposed to the air and melted.
海水是作为普通水的替代品而引入的，普通水是反应堆核心铀燃料棒的冷却剂。
The sea water appears to have been brought in as a substitute for the regular water used as coolant for the uranium fuel rods at the heart of the reactor.
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