红外线传输链路资讯数据还手持式发射器，提供最新的信号强度，电池状态和选定的传输参数的最新状况。
An infrared transmission link also feeds data to the hand-held transmitter providing up-to-date status of the signal strength, battery condition and selected transmission parameters.
操作期间在车辆之外表示我的教师光亮的一个手持式激光发射器。
It shows my instructor beaming a handheld laser outside the vehicle during operation.
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