These newproperties are expressed in terms of the properties of arid relationships between the levelset, the upper level set, the relative interior, and the relative boundary of the upper levelset.

这些新性质是用水平集、上水平集及其相对内部、相对边界的性质与它们之间的关系来表述的。

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The gentle slope of the site means the entrance block is set level with the upper storey of the second block, while its base is sunken out of sight of the entrance.

该基地的缓坡意味着入口区域与第二体块的顶层在同一水平面，同时，它的底部在入口视线的下面。

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A short set of stairs descends from the entrance into the split-level living space, with the kitchen situated on its upper portion and the lounge and dining space a few steps below.

一小段楼梯从入口向下延伸到分层次的生活空间，厨房位于它的上方，休息和餐厅空间在几级台阶的下方。

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But Marc Tucker says students who pass the exams could stay in high school and take a demanding set of exams at the upper division level.

VOA: special.2010.02.25