A major air-sea rescue is under way.

一项重要的海空营救行动正在进行中。

《柯林斯英汉双解大词典》

The Clean air Act requires major sources of air pollution to obtain such permits before making changes that would result in a significant emissions increase of any pollutant.

清洁空气法令要求主要空气污染源需获得这种许可证，以防止污染物排放量的严重增加。

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Almost 7 tons of ammonia emissions, a major air pollutant.

差不多7吨的氨气排放，而氨气是一种主要的空气污染物。

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But he says, it's because of current wind patterns that the volcano is having such a major affect on European air travel.

VOA: standard.2010.04.16

His teammate,Jack Faust, a retired Air Force major, is a disc golf legend.

VOA: standard.2010.08.03

The M-ATVs are also a major logistical challenge. The Pentagon transports them by air in order to meet the high demand, adding a 10-percent premium to the vehicle's cost.

VOA: standard.2010.08.01

And most of the games air on major broadcast networks.

FORBES: What the NFL Can Learn From March Madness on Demand

First, a mid-1993 visit to Hanoi by Dr. Patricia O'Grady, daughter of U.S. Air Force Major John O'Grady, revealed that information contained in a field investigation of her father's case was erroneous.

CENTERFORSECURITYPOLICY: Center For Security Policy

Al Halabi's attorney, Air Force Major James E.

CNN: Airman charged with taking maps, photos