Obviously, they know the difference between fluorite and ED.显然, 这些生产商们知道ED与萤石之间的差别.The seeming disorder of calcite highlights the geometric precision of fluorite.矿物质图片画廊.外观紊乱的方解石突出几何精确度的萤石.The cerium oxide preferably has...
到目前为止，反叛分子面对威胁的反应非常谨慎。Rebel sources have so far reacted cautiously to the threat.书架上摆满了有关环境威胁的书，不堪重负。Bookshelves groan under the burden of books on threats to the environment.威胁的迫切性the immediacy of threat...
The Tower of London is a great attraction to tourists.伦敦塔对游客有很大的吸引力.If you treble the distance, the gravitational attraction gets nine times weaker.如将距离增大两倍, 则其万有引力就减小九分之八.Fireworks added to the attraction of the festiva...
为了使读者明白他预述了这些备注.He premised these remarks so that his readers might understand.辩论开始之前我通常会预述自己的观点.I usually premise my arguments before I begin to debate....
射击场被一排排深红色的灯光设备从下面照亮了.The shooting-range is lit from underneath by rows of ruby-red light fittings.一道道灯光照亮了夜空。The night sky was lit up by flashes of light.到了夜里，周遭的铁丝网都被灯光照亮。By night, the perimeter wire was illumined by l...