现在在英国，几乎所有长途电话都通过光纤而非电缆传输。Nearly every long-distance call made in Britain now travels on optical fibre instead of cable.但是,有了光纤电缆, 电视就可以真正成为交互式的.But with fiber - optic cables, television will become truly interactive.在非线...
The fracture toughness of the bimetallic interfaces is lower than those of respective counterpart metals.在扩展路径上,界面和金属交替出现,且界面的断裂韧性不如相应单一材料的断裂韧性.The President had talks during a brief stopover in Lisbon with his Portugues...
...Hitler's plans to occupy and dismember Czechoslovakia...希特勒占领并瓜分捷克斯洛伐克的计划U.S. forces now occupy a part of the country...美国军队现在占领了该国的一部分。He hurried to take the suitcases and occupy himself with packing the car...他...
Early astronomers thought that our planet was the centre of the universe.早期的天文学家认为我们的星球是宇宙的中心。Space scientists and astronomers have taken another step forwards.航天科学家和天文学家又取得了进展。Astronomers used to ask why only Saturn has...