And then, for each tag position attached on the container, change the distance between the container and the antenna along a fixed direction. After that, for each distance, test label read rates.

首先搭建了较为理想的测试环境，然后改变标签在货箱上的贴附位置，并对每一个贴附位置沿固定方向改变货箱与天线的相对距离，接着对每一个距离测试标签的读取率。

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