这些不变的空间同样也是经典空间的变形，它们通过这种变形成为非对易空间。
The invariant space has to be as well a deformation of a classical space, a deformation that makes it noncommutative.
图像的高度和宽度的最大值被设置为 150 像素，但是保持高宽比例不变，因此图像没有变形。
The height and width are maxed out at 150 pixels, but the ratio of the height-to-width is preserved so the images are not distorted.
为确保铸铁铆焊平板不变形，并且在使用时平板不会出现问题。
To ensure that no deformation of cast iron plate riveting, and use flat no problem.
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