（文本為視頻大致內(nèi)容，可能與視頻并非完全一致，歡迎大家貢獻(xiàn)聽寫稿^^）

China’s space lab -Tiangong-1 has entered its rendezvous and docking orbit after a 259-day fight.

Prior to this, Tiangong-1 module’s orbit was adjusted to a perfect circle. How long it can continue in orbit now depends on its fuel supply.

So, it is crucial to control its flight path to meet the rendezvous and docking requirements.

Li Jian, Assist. Chief Engineer, Beijing Aerospace Control Center, said, "We need to make sure the module is flying at the right height and on the correct path to meet Shenzhou-9 when it arrives in the same orbit. We have made two adjustments to make sure everything is in the right place."
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