The linear shrinkage of green bodies showed an increase firstly but decreased with further increase in the carbon black content.

随着炭黑含量的增加，成形坯体的线型收缩先减小后增大，坯体的强度则逐渐降低。

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It is found that the absorption coefficient and the refractive index of the composite increased with increase of carbon black content.

测量发现，随碳黑含量的增加，复合体系的吸收系数逐渐增大，并伴随折射率的相应增加。

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The effect of carbon fiber content, carbon black content and temperature on the electic conductivity of the composite was studied in this paper.

本文采用极性的丁腈橡胶与短碳纤维复合，探讨了碳纤维及碳黑含量对复合材料电性能影响，以及该材料电性能随温度的变化情况。

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Lehmann, the lead author of the paper which is published in the journal Nature Geosciences, said that the black carbon content of soils in the study ranged from zero to 82 percent of soil organic carbon.

CNN: Soil study hints at climate model revision