Meanwhile, we proposed some relevant theorems or regulations to solve the security problems of mutable attribute range. 同时提出相应的一些定理或规则,从而初步解决可变属性的值域安全问题。
It is perhaps worth a short digression to discuss the possibility of the range of an operator not being closed, and its consequences. 在此值得稍离本题讨论算子的值域非闭的可能性及其推论。