The sky was like a sheet of drawing paper that has being dampened then showered with powderedgraphite.
天空看起来像一张被沾湿，之后撒上石墨的纸。
2
Thermal conductivity material was prepared with acrylate copolymer (acr) used as modifier for chlorinated PVC (CPVC) and superfine powderedgraphite used as filler.
After experimenting for eight days, he discovered that firing powderedgraphite with clay would work, and the hardness of the pencil lead could be varied by varying the ratio of graphite to clay.