求翻译：这里指的“量”，不是数学中某种数字概念，而是一定物象的形态所呈现出来的某种“量”的感觉。素描写生练习中，不仅要求同学们表现物体的质感，也要表现物体的量感。是什么意思？

This refers to the "quantity", in a number of mathematical concepts, but some of the images presented in the form of a "quantity" feeling. Sketch exercise, not only requires students to show the texture of objects, but also show the amount of sense objects.

Here the "quantity" means, is not a mathematical concept, but in a certain number of a certain epiphany patterns emerged as a certain kind of "quantity" feel. In practice, it is not only necessary to sketching sketching students demonstrated the texture objects, but also to show a sense of objects.

Here figure “the quantity”, is not in mathematics some kind of digital concept, but is some kind which certain physical image shape presents “the quantity” feeling.In sketch sketch practice, not only requests schoolmates to display the object the sense of reality, also must display the object the qu

In this case the "quantity", not some numbers in the mathematical concepts, but some images presented in the form of a sort of "quantity" feeling. Sketch from exercise, not only with students performance object's texture, also relating to the objects of sense.

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