在线影视免费观看
2024-04-25 04:35:19
影视：在线影视免费观看，讲述了
"第一就是技术积累不足。发动机的研发需要长时间的技术积累和经验借鉴，像是ECU的参数设定，没有足够的数据积累是设定不好的。而国内早期在发动机技术方面缺乏足够的积累和经验，因此难以研发出合格的发动机。第二就是资金投入不足。发动机研发是一项高风险、高投入的领域，需要巨大的资金投入才能推动技术的发展。而国内早期在经济方面投入的发动机技术较少，有限的资金，很多企业宁愿用来拿去直接购买发动机，也不愿意去研发，这么一来，自然就研发不出合格的发动机。再有就是人才缺乏。....
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