wedge segment的意思|示意

As a sophisticated tunnel lining type, the universal wedge-shaped segments can do a good job in the control of the axis of the shield-driven tunnel and the quality of the segment ring.

通用楔形管片作为一种较先进的隧道衬砌形式，在盾构法施工中能够较好地控制隧道掘进轴线和管片成环质量。

Operation procedure were 78 lobectomies, 7 bilobectomies, 33 pneumonectomies, 9 wedge resections or segment resections.

肺单叶切除78例，两叶切除7例，全肺切除33例，楔形切除或段切9例。