每一种样式代表一种不同的化学元素，所以光谱线的不同集合或模式意味着这颗恒星有不同的化学成分。
Each pattern stands for a distinct chemical element, and so different sets or patterns of spectral lines mean that the star has a different chemical composition.
可是那些在凹点的金线不太可能被带回地球，所以科学家还不能确定这在每个“夏天”都在凹点排成线而且发光的黄色灰尘的化学成分。
The 'gold' pits isn't likely to be ferried back to Earth, though - scientists remain unsure of the chemical composition of the yelllow, shimmering dust that lines the pit walls every 'summer'.
尚德的研究人员研发了一种化学方法，在窄带中处理硅片，该区域能吸收银，形成宽约20微米的金属线。
The Suntech researchers developed a way to chemically treat the silicon wafer in narrow bands.These treated areas attract silver, which forms metal lines just 20 micrometers wide.
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