短語詞組短語ductile metallic material 靭性金屬材料ductile material detail 延性物料soft ductile material 軟靭性材料rigid -ductile material 剛靭性材料dynamic fracture of ductile material 靭性介質(zhì)動態(tài)損傷ductile -mode material removal 延性切削Material ductile 延性材料 返回 ductile material