由于这些函数都使用堆栈语法，所以您可以对形状应用层次转换，并在后面将它们删除，以恢复原有矩阵。
As these functions use stack semantics, you can layer transformations for shapes and later remove them to restore the original matrices.
科学家们致力于在实验室内通过小鼠和人类的年轻的皮肤细胞来制得这些蛋白质，而这些蛋白质则使皮肤细胞转换成无论是形状还是功能都像天然灰色脂肪的细胞。
In the lab, the scientists forced young skin cells from both mice and humans to make these proteins, which then transformed the skin cells into what looks and ACTS like natural brown fat.
我们知道当一个转换函数被调用时，后续创建的形状就会根据该转换进行绘制。
Recall that once a transformation function is called, subsequent shape draws use that transformation.
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