但是“赛吉奥”的金属含量只有太阳的百分之一。
But Sergio has only one percent the metal content of our Sun.
我们测量的是每根香烟的金属含量，真正的问题是要反复的接触。
While the per-stick levels of metals are what we measured, the real issue is repeated exposure.
焚烧重金属或金属含量高的材料(尤其是铅、汞和镉)可能使有毒金属传播到环境中。
Incineration of heavy metals or materials with high metal content (in particular lead, mercury and cadmium) can lead to the spread of toxic metals in the environment.
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