because one of them failed
因为其中一个失败了
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Solyndra was one of those solar companies that failed because technological successes in the industry swept past them, according to Krugman.
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He observes, for example, that carbon nanotubes failed as lubricants (one of the early uses dreamed up for them) because they react with metal surfaces to form carbides.
ECONOMIST: Nanotechnology: Pipe dreams | The
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