美国金穹导弹防御项目面临重大挑战,原因是技术未经证实、成本庞大以及地缘政治问题。 The U.S. Golden Dome missile defense project faces major challenges due to unproven tech, massive costs, and geopolitical concerns.

美国Golden Dome导弹防御项目是全球拦截威胁的拟议天基系统,在成本、时间表和技术可行性方面面临重大障碍。 The U.S. Golden Dome missile defense project, a proposed space-based system to intercept threats globally, faces major hurdles over cost, schedule, and technical feasibility. 估计成本从2,520亿美元到3.6万亿美元不等 — — 远超过白宫1,750亿美元的索赔要求 — — 可能无法达到特朗普总统在三年内将有效防护罩提高到近100%的目标。 Estimated costs range from $252 billion to $3.6 trillion—far exceeding the White House’s $175 billion claim—and may not meet President Trump’s goal of a near-100% effective shield in three years. 专家警告该系统可能会引发新的空间军备竞赛,引起俄罗斯和中国的反对,这两个国家担心空间军事化。 Experts warn the system could spark a new space arms race, drawing opposition from Russia and China, who fear militarization of space. 项目的成功取决于成本、业绩和时间表之间现实的取舍,而尚没有明确的架构或筹资计划。 The project’s success hinges on realistic trade-offs among cost, performance, and timeline, with no clear architecture or funding plan yet defined.