超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
二元算子方程组
systems of two binary operator equations
二元组合文法
Binary Combinatorial Grammar BCG
非混合单调二元算子
mixed non-monotone binary operators
不动点组合算子
the fixed-point combinators
参数化组合算子
operator of parameterized combination
多指标组合算子
Multiple index combination operators
逆序与对偶组合算子
inverse and dual combination operator