英语词汇“safety radiotelegraphy certificate”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	safety radiotelegraphy certificate
释义	safety radiotelegraphy certificate un.无线电报安全证书；🌏无线电设备安全证书；无线电安全证书
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