Tornadoes have been known to tear steel bridges from their foundations, to uproot large trees, and to lift trains off their lines.

众所周知，龙卷风会把钢桥从地基上扯下来，把大树连根拔起，把火车从线路上拉下。

After 300 years, metal constructions such as the Eiffel Tower or steel bridges will start to break, since, for all these years, there won't be anybody around to paint and protect from corrosion.

三百年后，像艾菲尔铁塔或铁桥那样的金属建筑物会开始崩坏，因为这些年来，周遭不会有任何人粉刷并防止锈蚀。

When applying the coating to steel bridges and wind turbines built around sea water, which is what causes the corrosion, they found it could last twice as long as regular formulas.

当将涂层应用于钢桥和围绕海水建造的风力涡轮机时，这是导致腐蚀的原因， 他们发现它的使用寿命是常规配方的两倍。

The hot air spiraling upward sucks everything in its path, rather as a vacuum cleaner does. Tornadoes have been known to tear steel bridges from their foundations, to uproot large trees, and to lift trains off their lines.

螺旋上升的热空气会吸走其路径上的所有东西，就像吸尘器一样。众所周知，龙卷风会将钢桥从地基上撕裂，将大树连根拔起，并将火车卷离线路。