I have worked for the past three years improving my radioengineering knowledge and skills.
过去的三年来，我都在不断提高自己在无线电工程方面的知识和技能。
2
There were hardly any dropped calls and the call quality was pretty solid – I am guessing that it is thanks to both the radioengineering and the network.
没有电话漏接，通话质量也很好——我猜想 这应该归功于无线电工程和网络。
3
In the interwar years, the subject was known as radioengineering and it was only in the late 1950s that the term electronic engineering started to emerge.