But the 9.8 billion Swiss franc (7.0 billion euro) tunnel is also the fruit of a popular wave of concern about pollution in the Alps with booming road traffic transiting from neighboring countries.
但是这座投入了98亿瑞士法郎(70亿欧元)的隧道也激起了越来越高的担忧呼声，相邻国家繁荣的公路交通可能对阿尔卑斯山带来一定的污染。
Suffice it to say that the fresh air required to control pollution levels in a tunnel increases erratically with vehicle speed and traffic density and the design year is important.
这足以说明，由于车辆速度及交通密度的影响，用于控制隧道中污染水平的所需新鲜空气会不规则的增长，且设计年也很重要。
Objective: to screen nitrobacter that could be used to treat ammonia nitrogen pollution, dejecta and sewage in military tunnel.
目的：筛选、分离能够用于治理氨氮污染和军事坑道生活污物、污水的硝化菌。
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