高镍铬钼无限冷硬铸铁  high alloy indefinite chilled cast iron

无限冷硬铸铁  infinitely chilled cast iron; indefinite chilled cast iron

无限冷硬铸铁轧辊  infinitely chilled cast iron roll; infinite chilled cast iron roll

改进改型  modification

改进型无网格法  improved element-free Galerkin method

改进型无网格伽辽金法  improved element-free Galerkin method

冷硬铸型  chill mold

Cr-Ni-Mo无限冷硬Ⅳ材料轧辊  Cr-Ni-Mo chilled iron Ⅳ roller

铬钼无限冷硬球墨铸铁  Endless chilled Cr-Mo alloyed nodular cast iron

无限冷硬复合铸铁  Infinite chilled complex cast iron

冷硬冷铁  chill

冷硬铸铁  chilled iron; cold harden cast iron; Chilled cast irm; Chill cast iron; chilled cast iron; Chilled ductile cast iron

冷硬铸铁轮  chilled cast iron wheel

冷硬铸铁凸轮轴  chilled cast iron camshaft

冷硬铸铁轧辊  chilled cast iron roll; chilled roll

铁镍冷硬铸铁  Nihard

AC～I改进型配合比设计  AC-I improved mix proportion design

AC-20改进型级配  improved AC-20 grading

BP模型改进算法  BP network