Note that, the camera first looking for a reference tag, and then start the trace.
必给夺目的是, 相机首先搜索参考标志, 然后再不休跟踪.
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If you're not tracking reference tag, the system cannot automatically move or out track alignment error.
如果不克不及跟踪参考标志, 编制不离不克不及被迫安放或报出跟踪套准不对.
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