An initial investigation found evidence of metal fatigue or a fan blade had broken off.

初期调查发现了一些证据，表明可能是金属疲劳或者是风扇叶片脱落导致。

Other pictures posted on social media appeared to show a broken fan blade in the engine.

社交媒体上发布的其他照片出现了发动机上坏了的一片风扇叶片。

The U.S. National Transportation Safety Board said two of the engine's fan blades were broken and the remaining blades showed damage.

美国国家运输安全委员会称发动机的风扇叶片坏了两片，剩下的叶片也被损毁。

As he caressed the huge fan blades and felt the smooth steel of the foot-thick shaft which turned them, he dreamed of the work they would do and thrilled with pride.

当他抚摸着巨大的扇叶，感受着转动扇叶旋转的几英尺后的铁杆子，他梦想着他们做的工作，并骄傲地激动起来。

CFM, a joint venture between GE and Safran, two engine-makers, has over 1,000 engineers working on Rise, an open rotor-engine that does away with the cowling that covers the fan blades.

CFM 是通用电气和赛峰集团这两家发动机制造商的合资企业，拥有超过 1,000 名工程师致力于 Rise，这是一种开放式转子发动机， 取消了覆盖风扇叶片的整流罩。

Now, theoretically, if you tried to stick your hand into that fan, you'd see that your hand and the fan blades can't exist in the same place at once… No, Triangle Bob, I said theoretically!

现在，理论上，如果你试图将手伸进风扇，你会发现你的手和风扇叶片不能同时存在于同一个地方… … 不，三角鲍勃，我说的是理论上！