With my left hand I would hold the little chunk of steel firmly in pliers, and with my right I would lower the fierce drill press onto it, while a trickle of wet graphite played on the grim contact. 我左手握着钳子夹紧钢板,右手趁着石墨液滴滴入界面的当儿用锋利的钻头钻孔。
The results show that there exist chunk graphite and more globoid re-crystal graphite in the solvent metal than that in the film. 结果表明,与包膜相比,溶媒合金内含有块状的未溶石墨和较多的球状再结晶石墨。