HSK 7-9
电讯
diànxùn名
telecommunications; telecom
这家公司专门研究电讯设备。
Zhè jiā gōng sī zhuān mén yán jiū diàn xùn shè bèi.
This company specializes in telecommunications equipment.
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Appears across levels (7-9) in the HSK 3.0 word list.