观察了髂腰动脉的起始部位与骨盆入口平面的上下关系。

The origin of the iliolumbar artery in relation to the plane of the superior aperture of the pelvis is observed.

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通过选取一组合适的入口参数，设计了一种在平面上具有梯形入口的水下入口，并进行了验证。

By selecting a group of suitable entrance parameters, a submerged inlet with the trapezoid entrance on the plane surface is designed and verified.

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如果找不到当地测绘工作组提供的建筑物CAD图像，那么可以拍摄一张建筑物入口附近贴出的建筑物平面示意图的数码图像。

If you can't find a local site operations group that can provide a CAD image of the building, try taking a digital image of the building map diagrams posted near the entrances of your building.

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