Iran initially blamed technical failure, but forcefully denied it was responsible.

伊朗最初归咎于技术故障，坚决否认对此负责。

Officials say a technical failure caused the Russian-made jet to release the bomb.

官方称造成这架苏制战斗机发射炮弹的原因是出于技术故障。

It said the civilian aircraft had suffered a technical failure as it was taking off.

该公司表示，这架民用飞机在起飞时出现了技术故障。

Tehran immediately blamed technical failure for the crash, saying it was unconnected to the missile attack on US forces in Iraq.

德黑兰方面立即将坠机归咎于技术故障，称这与美国驻伊拉克部队遭受的导弹袭击无关。

Egypt's Civil Aviation Minister Sharif Fathi has said terrorist act is more likely to be the cause of the catastrophe than a technical failure.

埃及民航局局长谢里夫·法蒂表示称，我们认为恐袭是此次事故原因，而非技术故障。

The last one to a different asteroid was able to bring some samples back to Earth but it had some technical failures with it's rover.

上次任务成功地将在小行星上采集的样本带回了地球，但探测车出现了技术故障。

Aviation authorities say it could have been some sort of technical failure or it could have been terrorism that brought the plane down.

航空当局表示，这可能是某种技术故障，也可能是恐怖主义导致飞机坠毁。

According to historical experience, there are many possible causes which could lead an airplane to descend steeply, such as technical failures like engine malfunction, airplane body structure damage, or even bird strike.

根据历史经验，导致飞机急剧下降的原因有很多，例如发动机故障、机身结构损坏甚至鸟击等技术故障。