numerical pad数字盘numericaladj.数字的；用数字表示的numerical space character数字间隔字符numerical solution method数值解法Numerical Control Society美国数控学会numerical control program数控编程numerical value imitation数值模拟numerical value operation数值计算numerical differentiation数值微分法,数值微分numerical model parameter数值模型参数numerical control machine数字控制机床Numerical Methods for ODE常微分方程数值方法