chemical net网络chemicaladj.化学的n.药品；化学物chemical antiager[化] 化学防老剂chemical coupling化学偶合chemical ablation化学切除chemical receptor化学感受器chemical irritant化学刺激物chemical solvents化学熔剂chemical coloring化学彩色chemical stripper化学涂层剥除剂chemical fraction铅形态chemical diagnose化学诊断