体型和质量相当于航天飞机的飞行器制造的两个音爆则非常容易区分，人们经常很容易地听到两次响声。
Sonic booms created by vehicles the size and mass of the space shuttle are very distinguishable and two distinct booms are easily heard.
深圳市市民中心工程质量要求高，楼面面积大和体型复杂，楼板采用了钢筋焊接网技术。
The quality requirement of the Shenzhen Citizen Center project is high, and it has such features as large floor areas and a complex shape, so engineers adopted welded steel fabrics technique.
应用推荐