Lie无穷小判据
Lie’s infinitesimal criterion
等价无穷小
equivalent infinitesimd
infinitesimal equivalence
equivalent infinitely small
equivalent infinitesimal
equivalent infinite small
无穷小（大）量的阶
automatic pulse deinterleaving
无穷小变换
infinitesimal transformation
infinitesimal transformations
高阶无穷小
infinitesimal of higher order
higher-order infinitesimal
无穷小形变
infinitesimal deformation
无穷小数列
aluminum sheathed detonating fuse
低阶无穷小
infinitesimal of lower order
lower order the infinitesimal
无穷小上界
infinitesimally small upper bound