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他必须成为一名熟练的无线电操作员，能够修理自己的设备。
He must become a skilled radio operator and be able to repair his own equipment.
youdao
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“关于无线电操作人员，主管机关可：”。
"In respect of radio operators, Administrations may:".
youdao
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“关于无线电操作人员，主管机关可：”。
"In respect of radio operators, Administrations may:".
youdao