chemical firm化学公司chemicaladj.化学的n.药品；化学物chemical/thermal treatment加剂热处理chemical experimental courses化学实验课chemical dosage adding system加药系统chemical industry enterprises化工企业chemical property of material物资化学性质chemical processing equipment化学加工设备Chemical precipitating method化学沉淀法chemical hydrogen consumption化学耗氢量Chemical Factory of Daily Use日用化工厂chemical stimulation of brain脑化学刺激(作用)

1. After its angles have been beveled, guaranteeing a neat fit with the case, the sapphire crystal is chemically polished on both sides.
   对镜面边缘进行斜削，以确保其与表壳的精确配合，再将两面进行化学抛光。