For decades, researchers have worried about rising mercury levels in Arctic animals, such as seals, beluga whales, and Arctic char.
几十年来，研究者们一直担心北极动物，如海豹，白鲸，汞水平，北极红点鲑等动物的含汞量增加。
On that morning, even as the sky begins to glow with the rising Sun, Mercury and the whisker-thin crescent Moon will converge and seem to touch.
那个早晨，恰恰在天空开始由于上升的太阳，水星和胡须-的薄的新月而发光的时候月亮将会聚，好象触摸。
In dawns to come, Mars and Jupiter will continue to rise while Venus and Mercury sink toward the horizon, drawing closer to the rising Sun.
随着黎明的到来，火星和木星将继续上升，而金星和水星则落向地平线，向着升起的太阳靠近。
Results The content of acid and of such harmful metals as mercury, chromium and silver, can be prevented from rising too high.
结果四种处理方案使酸度高、有害金属汞、铬、银含量高得以控制。
Results The content of acid and of such harmful metals as mercury, chromium and silver, can be prevented from rising too high.
结果四种处理方案使酸度高、有害金属汞、铬、银含量高得以控制。
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