So far the first barrier, which is the fuel cladding, has apparently failed, because they are detecting cesium.

目前第一层屏障，也就是燃料包层，明显已经失败了因为他们已经检测到了铯。

youdao

So far the first barrier, which is the fuel cladding, has apparently failed, because they are detecting cesium.

目前，第一道屏障——燃料包壳，已经明显失去功用，因为专家已经在核电站附近检测到了铯元素。

youdao

So far the first barrier, which is the fuel cladding , has apparently failed, because they are detecting cesium .

目前第一层屏障，也就是燃料包层，明显已经失败了因为他们已经检测到了铯。

youdao

High burnup fuel rods stay hotter longer, emit more radioactivity, and may become brittle, scientists suspect, as the cladding that holds them together endures greater stresses.

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