最近 ,美国普拉特 -惠特尼航天推进公司与航空喷气通用公司签订了一项组成一家新的航天推进公司的意向书 ,但这并没有减少美国火箭推进工业公司需要合并重组的压力。至少从冷战结束以后 ,美国的航天和导弹推进公司就明显偏多 ,其生产能力超出了市场的需求。有关人士估计 ,需求? Recently, Pratt-Whitney Space Propulsion of the United States and Air Jet General Corporation signed a letter of intent to form a new space propulsion company, but this did not reduce the pressure on the United States Rocket Propulsion Industry Corporation to merge and restructure. At least since the end of the Cold War, the US Aerospace and Missile Propulsion Companies have obviously had more, and their production capacity has exceeded market demand. Relevant person estimates, demand?