绝对非分歧扩张
absolutely unramified extension
纯不可分扩张
purely inseparable extension
pure inseparable extension
极大可分扩张
maximal separable extension
可分扩张域
separable extension field
微分扩张状态观测器
differential extended state observer
2维主成分分析
two dimensional principal component analysis
2-dimensional principal component analysis(2DPCA
Two-Dimensional Principal Component Analysis(2DPCA
H-Galois(分次)扩张
H-Galois (graded) extension