chemical way碱浸法chemicaladj.化学的n.药品；化学物chemicals in combination复配chemical splanchnicotomy化学性内脏神经切除术chemically bonded moiety化学键合部分chemical conversion film化学处理膜chemical fertilizer loss化肥流失chemical solution method化学溶液法chemical ionization mass化学离子优质谱测定法chemical differentiation化学分化chemically skinned fiber化学带皮纤维chemical snow-removing化学法除雪