（二）仲裁请求和所根据的事实与理由；
The US space agency has released a "pre-solicitation" for what is expected to be a hotly contested contract to develop a spacecraft to orbit Mars and relay communications from the red planet back to Earth.
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然而，儘管評論者一致認為大約一半內容已落實，仍然有一半尚未實現，包括：
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