改变符号 meaning in English
reindexing
reversal
reverse the sign
Examples
- If the orientations of driving elements are reversed then it is necessary to change a sign in their terminal relations .
如果驱动元素的定向取反了，就必须在它们的端子关系中改变符号。 - A line integral of the second type changes sign when the direction of the integration path is reversed
当积分路径改变方向时,第二类曲线积分改变符号。 - When a ferromagnetism items is under the application of stress , the phenomenon that the tangential component of magnetic leakage field has maximum value and that the normal component of magnetic leakage field changes polarity and acquires zero value at the stress concentration zone will take place
铁磁性工件在受到应力作用时，在应力集中处会有漏磁场的切向分量出现最大值、同时法向分量改变符号且过零值点的现象。 - Several examples and numerical simulations are shown to illustrate and reinforce our theory . in chapter 3 , we firstly give both the definition of the discrete lyapunov functional and the proof of some properties of it for the dde with local positive or negative feedback in the delay term . secondly , we introduce the definition of the global attractor
A6s艺fae艺在本文的第三章中，首先给出了对于一类时滞微分方程的用改变符号次数来定义的离散lyapunov泛函，并给出了其有关性质的理论证明，进而说明在时滞项具有局部正反馈或者局部负反馈条件下的时滞微分方程这样定义lyapunov泛函的合理性，这是对前人在时滞项具有全局负反馈或者正反馈条件下的lyapunov泛函的推广。