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以門為例。起初,國內動車組電動塞拉門大多依賴進口,國內并沒有廠商能夠獨立研制生產,相關核心技術一直受制于人,采購與維護成本居高不下。為了讓“中國造”的塞拉門自由開合,中車長客發揮產業鏈龍頭企業帶動作用,聯合國內產業鏈配套企業協同配合、攻堅克難。經過堅持不懈科技創新,我國充分掌握了高速動車組塞拉門設計與制造技術,研發的高速動車組CR400系列電動塞拉門技術指標已達到甚至部分超過國外同類產品。
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