Microgram for microgram, beryllium is one of the most toxic elements on the periodic table.
一,又一,期表上最有毒的元素之一。
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At that point, the mirror's 18 hexagonal segments, made of beryllium and coated in gold, will resemble a gigantic glimmering honeycomb — and Webb will become a true telescope, Hammel says, because it will be able to capture light.
届时, 子的 18 个六边形部分( 由铍制成并镀金)将类似于一个巨大的闪闪发光的蜂窝— — 而韦伯将成为一个真正的望远,哈梅尔说, 因为它将能够捕捉光线。