chemical form化学形态chemicaladj.化学的n.药品；化学物chemical resistant polymer耐化学聚合物chemical resistant coating耐化学涂料chemical - churning pile旋喷桩chemical equipment in sets化工成套设备chemical industry products化工产品chemical industry effluent化学工业废水chemical polishing process化学抛光工艺Chemical Virtual Community虚拟社区chemically modified rubber化学改性橡胶chemical treatment of feed饲料化学处理