物理量来描述一个物体的特征。
We often use physical quantity to describe the features of an object.
上世纪60年代，物理学家从理论上推导出一个数学公式，可用于描述任意数量任意形状物体的卡西米尔力效应。
In the 1960s, physicists developed a mathematical formula that, in principle, describes the effects of Casimir forces on any number of tiny objects, with any shape.
而且他们都描述说他们看到的是一个巨大的三角形物体在完全静默地飞行。
And they all described what they saw as a massive triangular object flying in total silence.
细节层次模型是指对同一个场景或场景中的物体，使用具有不同细节的描述方法得到一组模型，供绘制时选择使用。
Level of detail are a group of models at different levels, which are used to describe one scene or its object and be selected for protracting.
细节层次模型是指对同一个场景或场景中的物体，使用具有不同细节的描述方法得到一组模型，供绘制时选择使用。
Level of detail (LOD) are a group of models at different levels, which are used to describe one scene or its object and be selected for protracting.
细节层次模型是指对同一个场景或场景中的物体，使用具有不同细节的描述方法得到一组模型，供绘制时选择使用。
Level of detail (LOD) are a group of models at different levels, which are used to describe one scene or its object and be selected for protracting.
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