求翻译：画明暗色调的目的，是通过对明暗层次和色调的对比描绘，表现物体结构、体面、明暗、色彩感、质量感、空间感等物体所具有的属性，从而表现出特定环境中的具体形象的艺术真实感。是什么意思？

The purpose of painting light and dark shades, through shades of light and dark contrast levels and descriptions of the performance of object structure, decent, light and shade, color sense, the quality of feeling, a sense of space and other objects that have properties, thus demonstrating the speci

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The picture light and shade tone goal, is through to the light and shade level and the tone contrast description, the attribute which performance objects and so on object structure, dignity, light and shade, color feeling, quality feeling, sense of space have, thus displays in the specific environme

Painted dark tone of the purpose, through the dark layered and tonal contrast picture, object structure, dignity, sense of light, color, quality and sense of space, and other objects have properties, as a demonstration of the artistic sense of reality in a particular environment.

The purpose of painting light and dark shades, through shades of light and dark contrast levels and descriptions of the performance of object structure, decent, light and shade, color sense, th