彩色显像管的质量控制需要利用和回用玻璃泡废料.Quality control of color picture tubes may require the salvage and reuse of the glass envelopes.我弟弟有一台21英寸显像管的落地式电视机.My brother has a console model with a 21 - inch picture tube.电视显像管和荧屏的半透明'&...
At the top, I risked a glance back.在顶端，我壮着胆回头瞟了一眼。I risked life and limb to get here on time.我冒着生命危险准时赶到这里.Max warned her she was sailing dangerously close to the wind and risked prosecution.马克斯警告她说她这是在玩火，有被起诉的危险。...