Said Zhou the task of rendezvous and docking is the greatest risk since we started to carry out the manned spaceflight engineering projects.
周建平说，交会对接任务是载人航天工程实施以来风险最大的一次。
Said Zhou the task of rendezvous and docking is the greatest risk since we started to carry out the manned spaceflight engineering projects.
周建平说，交会对接任务是载人航天工程实施以来风险最大的一次。
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