Of some textbooks of organic chemistry, There is a errorinequation for preparing amines from alkyl halides and ammonia.
在某些《有机化学》教科书中，卤代烷与氨反应制备胺的反应方程序有误。
2
The uncertain term derived from rotor resistance, that produces the estimation error, appears in both the stator current equation and rotor flux equation.
造成电流型观测器估计误差的转子电阻不确定项，在定子电流方程中同样存在。
3
In solving system of linear algebraic equation with iteration method, the error checking is discussed.