Operate bow thruster on each step load of three steps.

在三步骤中每一种载荷下运行艏侧推。

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The rocket had three of its four thruster pods not working after it launched.

FORBES: Elon Musk: SpaceX Testing New?Reusable Rockets

Once in space, three of its four thruster pods malfunctioned.

CNN: Elon Musk: Our future in space depends on reusable rockets

Shortly after the capsule separated from its rocket, SpaceX determined three of the capsule's four thruster pods -- which it would use to reach the station -- weren't operating.

CNN: STORY HIGHLIGHTS