每次停车掉头时，均应检查前后方向的路况。
Each time you stop while turning, check traffic in both directions.
不同于许旺氏细胞瘤，脊膜瘤主要位于上段和中段胸椎水平，但是在前后方向有相似的分布。
Meningiomas are predominately located in the upper and mid- thoracic areas, different from schwannomas, but are in a similar distribution in the anterior-posterior plane.
壶铃的运动是前后方向的，而非上下，要实现此目的需要将力向前延伸，并通过双脚抓地来抵抗向前的拉力。
The movement of the bell is forward and back, not up and down, with the goal to project the force forward and to resist by grounding into your feet.
资料也同样提供了在后交叉韧带损伤膝关节，除前后方向上的移动外，内外侧稳定性的增加也是同样重要的。
Our data also suggest that recreating mediolateral stability of posterior cruciate ligament-deficient knees might be of importance in addition to surgically improving anteroposterior translation.
重建CT图像的前后方向的几何误差是随着扫描层厚增加而增加，主要是由于CT扫描的部分容积效应影响。
The geometric error of axial image reconstruction increases with the increase of CT scan slice thickness, due to CT partial volume effect.
重建CT图像的前后方向的几何误差是随着扫描层厚增加而增加，主要是由于CT扫描的部分容积效应影响。
The geometric error of axial image reconstruction increases with the increase of CT scan slice thickness, due to CT partial volume effect.
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