联合技术公司在今年曾遭遇过多次打击，包括庞巴迪c系列的齿轮传动式涡轮风扇发动机原型起火，还有F - 35联合攻击战斗机的引擎爆炸。

United Technologies has suffered a few setbacks this year, including a fire in the prototype for the geared turbofan on the Bombardier C-Series and an engine blowout on the F-35 Joint Strike Fighter.

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