TextField 用焦点侦听者来演示焦点移动到该示例组件和从该组件移走时发生的变化。
The TextField has focus listeners to demonstrate the focus changes to and from the example component.
而受磁后的显著变化就是机芯走时的误差变得越来越大。
And the significant change in the magnetic field after the movement of the error is becoming more and more large.
背向走时足底压力中心较正常步行变化范围大。
The changes of foot pressure center were more extensive during backward walking than those during natural walking.
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