A Type I telecommunications enterprise means an enterprise that installs telecommunications line facilities and equipment in order to provide telecommunications services.
Foreign demand for advanced machinery is huge; exports of civilian aircraft, drilling tools, telecommunications equipment, agricultural machinery and excavators all rose at double digit rates in 2007.
3
起初它被发明出来用于无线电信号的放大，这让你能够用晶体管收音机取代真空管收音机。
It was first developed to amplify radio signals, and you had transistor radios that replaced the vacuum tubes that were being used.
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