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超音速动臂
1、boom towns───n.新兴城市( boom town的名词复数 )
2、boom out───用帆脚杆张开帆;以低沉的嗓音说出;最大伸距;低沉地发出; 用低沉的声音说话
3、boom town───新兴城市
4、boom chicka boom───砰!砰
5、boom boom───[体]左直拳接右勾拳;砰砰(舞曲)
6、boom boom boom song───隆隆隆隆之歌
7、boom───n.繁荣;(某种体育运动、音乐等)突然风靡的时期;吊杆;隆隆声;水栅;帆桁;n.(Boom)(美、荷、俄、英、比、德)博姆(人名);v.使兴旺;发隆隆声;急速发展;用低沉的声音讲话;鸣叫
8、staysail boom───staysail吊杆
9、boom boom boom───动臂动臂动臂
1、An aircraft, for example, flying supersonic at 50,000 feet can produce a sonic boom cone about 50 miles wide.───例如,一架50,000英尺高处的超音速飞机可以制造出50英里左右宽的音爆圆锥。
2、Breaking the sound barrier generates a sonic boom, so supersonic travel is heavily restricted over land.───打破音障时会产生音爆,所以超音速飞行在陆地上空有诸多限制。
3、True to its aeronautic roots, NASA is evaluating a new generation of supersonic airplane designs to see whether they can reduce sonic-boom levels.───正由于NASA的航空根基,NASA正在评估一种新一代超音速飞机的设计,以确认它们是否可以降低音爆水平。