Degenerative spondylolisthesis is the result of longstanding intersegmental instability at the lumbar motion segment.

退行性椎体滑移是腰椎活动节段长时间节段间不稳定的结果。

youdao

Semirigid instrumentation of the spine may be applied with the intent to fuse the spine, or to stabilize the affected motion segment without fusion.

脊柱的半坚强固定，逐步被运用到脊柱融合术中，或者运用固定受累节段而不是融合。

youdao

Objective: To establish a digital model for reconstruction and three-dimensional visualization of upper cervical spinal motion segment from ct images.

目的：寻求连续CT断层图像重建上颈椎运动节段数字模型及三维可视化的方法。

youdao

It was also a gamble as the company risked eroding its equity among men, but its dominance of the motion segment suggested diversifying its appeal.

FORBES: Embracing Brand Equity While Changing Perception To Reach New Customers

On top of this, Research in Motion is expected to launch its PlayBook tablet in March 2011, and could leverage its dominant position in the enterprise segment to accelerate penetration of the tablet market (See Can RIM Leverage its Enterprise Market Presence to Lift Tablet Sales?).

FORBES: Apple's iPad 2 Comes As Tablet Rivals Make Charge