These secret audio and video recordings must be securely kept. The play of these materials has to be authorized by the leaders and the extension of the audience is strictly controlled.
涉密内容的录音带、录像带要妥善保管，在使用播放前需经领导同意并严格控制收听收看范围。
These secret audio and video recordings must be securely kept. The play of these materials has to be authorized by the leaders and the extension of the audience is strictly controlled.
涉密内容的录音带、录像带要妥善保管，在使用播放前需经领导同意并严格控制收听收看范围。
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