The semi freedom short circuit is superposed by parallel plane flow, confluence and ringy turbulence jet.

半自由状态下短路场是行、环形紊射及汇叠加而成。

Newly developed semi automatic grinding wheel balancer for precise grinder detects unbalance vibrative signal by digital phase sensitive detection technique.

介绍新研制成功精密磨床砂轮半自动衡仪。

Some properties of adjoint matrix are discussed. The properties are symmetry, antisymmetry, positive definite, positive semi-definite, orthogonal and characteristic value.

摘要讨论了伴随矩阵在对称、反对称、正定、半正定、正交、相似和特徵值等方性质。