Warmer sea temperatures caused by climate change and periodic El Nio events have caused large areas of coral to be wiped out in so-called "bleaching" events.

气候变化及周期性的厄尔尼诺现象引起的海水变暖，已经造成了大面积的珊瑚礁在所谓的“漂白”事件中消失殆尽。

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Reductive bleaching is also carried out, using sodium hydrosulphite.

用连二亚硫酸钠也进行了还原漂白。

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Warmer sea temperatures caused by climate change and periodic El Niño events have caused large areas of coral to be wiped out in so-called "bleaching" events.

由于气候变化及周期性的厄尔尼诺现象而引起的海水变暖已经造成了大面积的珊瑚礁消失殆尽——即所谓的“漂白”现象。

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In the water below floated rubble, bodies, misery, but the light played across one iron face of this artificial valley in a sharp white beam, bleaching out the dirt and death, turning this bleak scene of ruin and oppression into one of stark, unblemished beauty.

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