新路正在实施临时交通管制。
飞行员得到空中交通管制站发出的着陆许可。
The pilot was given clearance to land by air traffic control.
他们必须等待空中交通管制队下达的起降许可令。
这是因为航空交通管制（ATC）对整个空间的控制是至关重要的。
This is because ATC control of the entire space is essential.
相对飞机而言，高铁列车的突出优势在于准时，因为基本不受天气或交通管制的影响。
Compared with the airplane, the outstanding advantage of the CRH train is punctuality, because it is basically not affected by weather or traffic control.
相对飞机而言，高铁列车的突出优势在于准时，因为基本不受天气或者交通管制的影响。
Compared with planes, the outstanding advantage of high-speed trains is their punctuality, for it is scarcely influenced by weather conditions or traffic control.
许多人认为，空中交通管制系统是由一排坐在美国机场雷达屏幕前的管制员组成的，他们告诉到达和离开的航班该做什么。
Many people think that ATC consists of a row of controllers sitting in front of their radar screens at the nation's airports, telling arriving and departing traffic what to do.
4月8日，武汉市解除离市交通管制。
1月23日，武汉宣布实施出市临时交通管制。
Jan 23: Wuhan declared temporary outbound (向外的) traffic restrictions.
首先，空中交通管制几乎覆盖了整个美国。
需要持有明确的空中交通管制许可才能进入B类空域，如接近一个大都会机场。
To enter Class B airspace, such as an approach to a major metropolitan airport, an explicit ATC clearance is required.
第一个出现类似现在的航空交通管制的地方是纽约市，很快，其它大城市也开始效仿。
The first region to have something approximating today's ATC was New York City, with other major metropolitan areas following soon after.
例如，VFR飞行员进入C类空域所要做的就是与空中交通管制建立双向无线电联系。
For example, all a VFR pilot has to do to enter Class C airspace is establish two-way radio contact with ATC.
无交通管制的空域被定为等级F，而低于海拔5490米、不在机场附近的管制空域是等级 E。
Uncontrolled airspace is designated Class F, while controlled airspace below 5,490m above sea level and not in the vicinity of an airport is Class E.
尽管飞行员必须继续遵守有关视觉飞行规则的所有规定，但无需获得空中交通管制的明确进入许可。
No explicit permission from ATC to enter is needed, although the pilot must continue to obey all regulations governing VFR flight.
然而，这种纯粹的视觉系统在恶劣天气下毫无用处，到了20世纪30年代，无线电通信开始用于空中交通管制。
However, this purely visual system was useless in bad weather, and, by the 1930s, radio communication was coming into use for ATC.
在20世纪40年代，空中交通管制中心能够而且确实利用了第二次世界大战中新研制的雷达和改进的无线电通讯，但是这个系统还处于初级阶段。
In the 1940s, ATC centres could and did take advantage of the newly developed radar and improved radio communication brought about by the Second World War, but the system remained rudimentary.
我不在空中交通管制的范围内。
接下来就是空中交通管制的问题了。
她老是迟到，今天又实行临时交通管制。
She is always late and a temporary traffic control is taken today.
北京打算在奥运会期间要求实行类似或者规模更大的交通管制。
Beijing intends to require similar or greater traffic reductions during the games.
这份新合同使空中交通管制设备的运行维护更趋合理、单一、灵活。
This new contract rationalises operational maintenance services for the Air Traffic Control equipment into a single and flexible performance based arrangement.
如若发电站、精炼厂、银行和空中交通管制系统被迫瘫痪，人们便性命难保。
If power stations, refineries, Banks and air-traffic-control systems were brought down, people would lose their lives.
美国仅有一个空中交通管制服务提供商，然而，欧洲有令人难以想象的34个。
Where America has a single provider of air-traffic control services, Europe has a mind-boggling 34.
它的位置几乎恰好处于南美洲和非洲的中间，起着空中交通管制的中转站的作用。
Almost halfway between South America and Africa, it serves as a switching station for air traffic control.
在出现极其长的开发循环(例如，航空交通管制系统)的领域中，这是至关重要的。
In domains with extremely long development cycles (such as air traffic control systems), this is crucial.
在出现极其长的开发循环(例如，航空交通管制系统)的领域中，这是至关重要的。
In domains with extremely long development cycles (such as air traffic control systems), this is crucial.
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