不可触及病变
Nonpalpable breast lesion
不可触及乳腺病灶
Nonpalpable breast lesion
不可触乳腺微小病灶
Impalpable minimally focus of breast
体检不可触及病变
Nonpalpable breast lesion
ARROW不可能性定理
Arrow’s impossibility theorem
Bush连续不可微函数
Bush continuous and non-differentiable function
James-Stein估计量不可容性
inadmissibility of James-Stein estimator
L不可分解矩阵
L-indecomposable matrices
Pitman估计量不可容性
inadmissibility of Pitman estimator