In May, Continental and United airlines announced a definitive merger plan, making it the world's biggest air carrier -- a title previously held by Delta.
五月，Continental航空公司和United航空公司宣布了合并计划，取代Delta成为世界上最大的航空运输商。
It's a phenomenon that occurs anywhere you have a large lake that doesn't freeze and have cold air flowing over it, mostly in the Northern Hemisphere Like the great lakes in the United States.
这种现象发生在不结冰的大湖泊附近，这些湖通常被冷空气包围着，并且它们大多数坐落在北半球，就像美国的五大湖一样。
The immensity of the United States makes air travel common place.
因为美国幅员辽阔，乘飞机旅行很常见。
In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly.
在《清洁空气法案》强制要求美国使用无铅气体的二十年里，铅在世界范围内的累积量显著下降。
Today in the United States, low-income households and people of color are disproportionately affected by indoor and outdoor air pollution.
今天，在美国，低收入家庭和有色人种被室内或室外空气污染不成比例的影响。
The new information could even be useful in parts of the United States or Western Europe where surface monitors, still the gold standard for measuring air quality, are sparse.
这些新的信息对于美国或西欧一些地区也将大有裨益，那些区域长久以来都使用地表探测器的结果作为衡量空气质量的标准。
Three fourths of the United States has geology suitable for underground air storage.
美国四分之三区域的地质适合于地下空气存储。
Non-NATOSweden and Jordan flew air patrols enforcing the no-fly zone, while both Qatarand the United Arab Emirates joined strike sorties.
非北约成员国中，瑞典和约旦出动空中巡逻机执行禁飞任务，卡塔尔和阿联酋则参与了空袭。
The American Heart Association estimates that in the United States alone, PM2.5 air pollution spark some 60, 000 deaths a year.
美国心脏协会估计，仅在美国，被PM 2.5颗粒污染的空气就导致每年约60,000人死亡。
Dust from the Gobi and Taklimakan deserts is often present over the western United States in the spring and can lead to disastrous air quality in Korean, Japanese and Russian cities.
来自戈壁和塔克拉玛干沙漠的沙尘常常在春季出现在美国西部，导致了韩国、日本和俄罗斯城市的灾难性的空气质量。
"We have the designation of perhaps having the worst air quality in the United States," noted Christopher Patton with the Port of Los Angeles.
洛杉矶港务局的克里斯托弗·帕顿说：“我们大概已经被认定为全美国空气最污浊的城市。”
In the United States, the western state of California has the nation's toughest environmental regulations when it comes to air quality at the ports.
针对海港城市的空气清洁问题，美国西岸的加利福尼亚州制订了全国最严格的环保法规。
The United States took the lead in knocking out Libyan air defenses.
在摧毁打击利比亚空中防御系统方面，美国是占据领先优势的。
In contrast, a single monitor operated by the United States Embassy in downtown Beijing, where traffic is heavy, consistently reports less healthy air conditions than the official index.
与此相反，位于北京高郊的美国驻华大使馆依其自已的一套监测设备则持续显示，有利有身体健康的空气质量状况统计数据要差于官方数据。
Each year the United States delays tackling its emissions means another year in which more carbon is spewing into the air, nudging temperatures upward.
每年美国推迟处理排放意味着来年有更多的二氧化碳投放到大气中，这稍微的提高了气温。
Los Angeles is not only the second-largest city in the United States, but it also ranks high for having some of the dirtiest air in the U.S..
洛杉矶不仅是全美国第二大都市，它污浊的空气，在美国也是名列前茅。
With a population of 300 million, the United States has cleaner air and water now than 40 years ago, when the population was 200 million.
拥有3亿人口的美国，相比较40年前2亿人口时，空气和水都更清洁干净了。
The drones are launched from air bases in Afghanistan and Pakistan but are controlled by pilots in the United States.
无人机从阿富汗和巴基斯坦的空军基地发出，但都由身在美国的飞行员控制。
The Japanese, without any warning, yesterday afternoon began war on the United States with air attacks on the naval base at Pearl Harbour, Hawaii, and the adjacent city of Honolulu.
没有任何预警，日本发动了对美国的战争。昨天下午日军空袭了位于夏威夷的美国海军基地珍珠港，以及临近的城市檀香山。
The United States has also implemented new enhanced security measures for all air carriers with international flights to the United States.
美国还实施了先进的新式安保措施，专门针对与美国有国际航班往来的航空公司。
Most egregiously, these shady real estate deals victimized American Air Force pilots who were stationed in Japan but wanted home sites in the United States.
最为过分的是，这些阴暗的房地产交易危害了驻军在日本但又想要在国内购置房产的美国空军飞行员。
For some time now no navy or air force has posed a threat to the United States.
目前有一段时间，没有哪个国家的海军和空军敢和美国叫板。
Meanwhile, travelers to the United States must have a visa, even if they would not need one to arrive by air.
与此同时，美国公民必须持有签证，哪怕是搭飞机前往不要这玩意的地方。
Two giant pandas from the United States arrive in China after a long journey by air.
两只来自美国的大熊猫经过长途飞机旅行抵达了中国。
On Saturday, France, Britain and the United States launched air strikes against Libya.
周六，法国，英国和美国派出飞机空袭利比亚。
The Air Force already flies its unmanned aerial vehicles remotely, with operators located in the United States controlling unmanned systems flying in Iraq and Afghanistan.
空军已经远程控制无人机，和位于美国的控制伊拉克和阿富汗的无人驾驶飞行系统的操作员一起。
The Air Force already flies its unmanned aerial vehicles remotely, with operators located in the United States controlling unmanned systems flying in Iraq and Afghanistan.
空军已经远程控制无人机，和位于美国的控制伊拉克和阿富汗的无人驾驶飞行系统的操作员一起。
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