Chemical bum化学性烧伤chemicaladj.化学的n.药品；化学物Chemical Agent Munition化学弹药chemical coating method包覆工艺chemical process design化学过程设计Chemical quality traits化学品质性状chemical vapour deposit化学气相沉积Chemical Ni-P plating化学镍磷镀chemical oxygen deamand化学需氧量chemically injured eyes眼化学伤chemical burn of tongue化学性舌烧伤chemical etching method化学刻蚀法PVC／CaCO3