These stronger pavements can handle heavier aircraft.

这些更坚固的路面可以处理更重的飞机。

Did you know it was the heaviest aircraft ever to take to the skies?

您知道这是有史以来最重的飞机吗？

The A320 is far from the heaviest aircraft in the world, but it does still carry substantial weight.

A320 远非世界上最重的飞机，但它的重量仍然很大。

The FAA defines heavy aircraft as those with  a maximum takeoff weight of 300,000 pounds or more.

美国联邦航空局将重型飞机定义为最大起飞重量为 300,000 磅或以上的飞机。

A  large aircraft following a heavy aircraft only needs five nautical miles.

一架大型飞机跟随一架重型飞机只需要五海里。

These heavy aircraft don't have to  be operating at that weight, but they still get designated as heavy.

这些重型飞机不必以那个重量运行，但它们仍然被指定为重型飞机。

A heavy  aircraft following another heavy aircraft only needs a space of four nautical miles.

一架重型飞机跟随另一架重型飞机只需要四海里的空间。

Even a heavy aircraft like  a Boeing 747-400 following a super aircraft gets a minimum spacing of six nautical miles.

即使是像波音 747-400 这样的重型飞机跟随一架超级飞机也需要至少六海里的间距。

This entire air base is covered in ice and yet, the Russians have managed to extend the runway to a point that they can land even their heaviest aircraft here including strategic bombers capable of carrying nuclear weapons.

整个空军基地都被冰覆盖，俄国人已经设法将跑道延伸到甚至可以在这里降落最重的飞机，包括能够携带核武器的战略轰炸机。