The human spaceflight carrier rocket project had seen success in blast-off from the first rocket to the fourth one laying a solid foundation for the blast-off of the fifth rocket.
载人航天运载火箭经历了从第一枚到第四枚发射的成功，为第五枚火箭发射打下了坚实基础。
The human spaceflight carrier rocket project had seen success in blast-off from the first rocket to the fourth one laying a solid foundation for the blast-off of the fifth rocket.
载人航天运载火箭经历了从第一枚到第四枚发射的成功，为第五枚火箭发射打下了坚实基础。
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