在凝视的方向上，眼球震颤有一个快动相，双眼的强度和持续时间相等、 连续。
The nystagmus has a quick component in the direction of gaze and is of equal intensity and duration in both eyes.
在凝视的方向上，眼球震颤有一个快动相，双眼的强度和持续时间相等、 连续。
The nystagmus has a quick component in the direction of gaze and is of equal intensity and duration in both eyes.
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