That makes the vegetation on the ground right for spreading potential fires.

这使得地面上的植被成为了潜在的火灾传播源。

It's very difficult to make measurements of convection in a spreading fire.

在蔓延的大火中测量对流是非常困难的。

Not only spreading the fire to additional locations, but also triggering brand new fires.

这不仅让火灾蔓延到其它地点，还能引发新的大火。

" The seas are rising, diseases are spreading, fires are burning, hundreds of thousands of people are leaving their homes, "

“海平面正在上升，疾病正在蔓延，大火正在燃烧，数十万人背井离乡。”

Firefighters in Turkey, Croatia, Syria, Gran Canaria, and Portugal also fought against the spreading fires.

土耳其，克罗地亚，叙利亚，大加那利岛和葡萄牙的消防员也与蔓延的火灾作斗争。

So that's our main mission here is who understand how the processes of combustion, heat transfer, and ignition all produce a spreading fire.

所以我们在这里的主要任务是了解燃烧、传热和点火的过程是如何产生蔓延的火的。

Joshua, you were in the town of Mariposa just a few miles south of where this fire has been spreading. What'd you learned?

约书亚，你当时在马里波萨城镇, 这里就在这场大火蔓延的地方以南几英里处)。你了解到了什么?

Thousands of residents who fled the Canadian city of Fort McMurry have been airlifted to safety after again being threatened by a rapidly spreading wild fire.

加拿大麦克默里堡大火，数千居民逃离家园，由于大火迅速蔓延，民众被空送到安全地带。

It illustrates one important principle of wildland fires, you don't want to be uphill of a spreading fire because it can spread very, very rapidly and be very dangerous.

它说明了荒地火灾的一个重要原则，你不希望火灾沿着山向上蔓延，因为它会蔓延得非常非常迅速，非常危险。