Design and construction as well as management of the acoustic barrier system is introduced.
文中介绍了声屏障工程的设计与施工、管理等情况。
The paint system on any boat is an important first barrier against corrosion.
任何船只上的涂料体系都是抗蚀的第一道屏障。
The paint system on any boat is an important first barrier against corrosion.
任何船只上的涂料体系都是抗蚀的第一道屏障。
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