地球表面的气压相对稳定，因此设计地面用的传音器，工程师并不需烦恼气压的大幅变化。
Air pressure on the surface of the Earth is fairly constant, so in designing a microphone for use on land, engineers don't have to worry about large variations in air pressure.
施工工程师：摆弄那些大型玩具可能是很有趣的，比如推土机、前载车、反向铲、刮运机、平地机、铲车、起重机、大型水泵以及空气压缩机。
Operating engineers: Playing with giant toys like bulldozers, front-end loaders, backhoes, scrapers, motor graders, shovels, derricks, large pumps, and air compressors can be fun.
现代气压沉箱工法在桥梁基础及各种地下工程建设中具有许多独特的优点，在日本得到广泛的应用。
The modern construction using the pneumatic caisson has multiple unique advantages in construction of bridge foundations and underground works, and is widely used in Japan.
应用推荐