The reason for the division of Class E and Class A airspace stems from the type of planes operating in them.

E 类和 A 类空域的划分取决于在这两类空域飞行的飞机类型。

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It may represent a new class of failed stars straddling the division between stars and Jupiter-like planets.

它可能代表了一类新的“失败之星”，即介于恒星和类木行星之间的一种星体。

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The most important division, however, is probably between the middle class created by the actions of the state and its equivalent created by its own efforts in the private sector.

然而，最重要的分歧可能存在于由国家行为催生的中产阶级和私营领域凭自身努力而成长起来的中产阶级之间。

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At Bagram air field outside Kabul, Sergeant First Class Randy Geringer helps train 82nd Airborne Division soldiers to drive the M-ATV.

VOA: standard.2010.08.01

Watkins wanted to turn the school's sports into a big-time Division One program and thought that building a first-class stadium was the key.

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Going beyond the MIL-STD-810G certification with the ability to withstand a six-foot drop, and with a shock-mounted hard drive, magnesium alloy case and UL1604 Class I Division 2 certification, this mobile computer is optimized to operate in hazardous and mission-critical environments.

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However, even if every state creates a public-only, small-school playoff division, the class warfare is going to get even more complicated.

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