河流转向东流时河道大幅度变宽。The river widens considerably as it begins to turn east.小路在和公路相交的地方变宽了。The track widened as it met the road.过了一会儿,路变宽了,他们也走得更快了.After a while the road opened up and they traveled more quickly....
Since then, it has been wildly used in the area of aerospacecraft, aircraft, energy system, electronics, automobile, mechanical equipment et al.由于综合性能优异, 问世后很快在航天 、 航空 、 能源 、 电子 、 汽车 、 机械等领域得到了成功的应用....