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。...
The weathering crust eluvial type REE deposits develop widely in southern Hunan.风化壳淋积型稀土矿床,在湘南地区普遍发育.Eluvial tantalite: Eluvial tantalite is found in rubble consisting of fragments and pebbles of varied composition.残积层钽铁...