In practice of course there will be a dynamic lag in the antenna following the sight line.
当然，实际上在天线跟踪视线的过程中是会有动态滞后的。
Since they do not require a line of sight with the RFID tag they can be mounted at a wall or the antenna can hang from the ceiling.
由于射频识别标签不需要用视线来监察，它们可以固定在墙上，而天线可以挂在天花板上。
Since they do not require a line of sight with the RFID tag they can be mounted at a wall or the antenna can hang from the ceiling.
由于射频识别标签不需要用视线来监察，它们可以固定在墙上，而天线可以挂在天花板上。
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