radiotelegraphy
/ˌreɪ.di.oʊ.təˈlɛɡ.rə.fi/ទូរលេខឥតខ្សែ
- noun ទូរលេខឥតខ្សែ, វិទ្យុទូរលេខtelegraphy using radio waves instead of wiresការផ្ញើសារទូរលេខតាមរយៈរលកវិទ្យុដោយមិនប្រើខ្សែEarly ships relied heavily on radiotelegraphy for emergency communication.
កាលពីដើម កប៉ាល់ពឹងផ្អែកខ្លាំងលើទូរលេខឥតខ្សែសម្រាប់ទំនាក់ទំនងបន្ទាន់។
Synonyms: wireless telegraphy
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Source: ToolOrca English–Khmer dictionary.