一种水下采油树，它在水平轴线上装有总闸门和流动控制设备，以便最大限度地降低装置的高度。
Christmas tree design for subsea applications, configured with the master valves and flow-control equipment on a horizontal axis to minimize the assembly height.
一种水下采油树，它在水平轴线上装有总闸门和流动控制设备，以便最大限度地降低装置的高度。
Christmas tree design for subsea applications, configured with the master valves and flow-control equipment on a horizontal axis to minimize the assembly height.
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