It was not supposed to be used until they got to the Moon. It had no heat shield, so could not be used to re-enter the Earth's atmosphere. But it could keep them alive until they got there.
但毛利率跟净利润率却在跌，其中毛利率在 2021 年为 38.1%，2024 年到了 36.8%，而 2019 年毛利率为 49.74%。
，更多细节参见搜狗输入法2026
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