I have a motion of an object along a straight line we'll call that one-dimensional motion.

假设有一物体，沿直线运动，我们把它称为一维运动。

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Objective To study the effect of the expansive open-door laminoplasty on the three-dimensional motion and stiffness of the cervical spine.

目的研究颈椎后路单开门椎管扩大成形术对颈椎三维运动及刚性的影响。

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An optical flow based approach was presented to estimate coronary arterys two-dimensional motion from a sequence of single-plane angiographic images.

采用光流法，由单面冠状动脉造影图像序列估计冠状动脉血管的二维运动。

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With recent improvements in three-dimensional motion analysis, House is able to analyze motion at 1, 000 frames per second, up from 32 frames that the human eye can process.

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But researchers at the Centre for the Developing Brain have found ways to counter the effects of these movements, building up full three-dimensional pictures while the foetus is in motion.

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