他说，在寻找不寻常的相关元素丰度之前，你先要充分掌握地球化学，去了解分子的入门是什么。
"You would have to establish the geochemistry well enough to know what the 'alphabet' of molecules was" before hunting for unusual relative abundances, he says.
生命若在太阳系其他地方引起相当的影响，那些对它们具有生死关键的相对化学元素丰度，无论是什么，很可能暴露它们的存在。
If life has had a comparable impact elsewhere in the solar system, the relative abundances of chemicals key for its survival -whatever they may be -could betray its presence.
在地壳模型和岩石化学资料基础上，计算和研究了新疆地壳的平均化学成分和主要元素丰度。
With the crustal model and the petrochemical data, the average chemical composition and the abundance of major elements in Xinjiang crust are calculated and explored.
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