分析在弯曲工况、制动工况、转弯工况和扭转工况下的应力与变形状态，对应力集中位置结构提出改进方案。

Do research on the stress and deformation state in the condition of bending, braking, turning and reversing, and then make a program that improves the structure of the frame.

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图10展示了在我们遍历树时位置结构发生了怎样的变化，在这里向下(始终下移至左侧第一个子节点)，随后向右，然后再向下。

Figure 10 illustrates how the location structure changes as we traverse the tree, here going down (always to the first left child), then right, then down.

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研究干性颅骨标本外侧面星点、顶乳突缝前角与周围解剖结构的距离及其位置关系。

The anatomical relationships and the distance within the asterion, the anteriorangle of parietomastoid sutures and the adjacent bone structures were studied with dried skulls.

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So, which atom would you expect to be in the center of a Lewis structure for thionyl chloride?

那么，大家认为那个原子应该在,亚硫酰氯的路易斯结构的中心位置呢？

麻省理工公开课 - 化学原理课程节选