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例1:天津产 F—2001A 型 X 线机千伏补偿 R_2断路故障现象:将 mA、Kv 和 S 调至说明书所给定的过载临界值,其载指示灯 XD(?)不亮,
Example 1: Tianjin F-2001A-type X-ray machine kilovolt compensation R_2 open circuit fault phenomenon: the mA, Kv and S adjusted to overload the critical value given in the manual, carrying light XD (?) Does not shine,