还有一种方法，如果你把这个曲面无限延展，这些定向性质都不会改变。
Yet another way, if you deform continuously your surface then the conventions will not change.
由天然植物成分打造，并且笔芯粉体棱角进行了特殊曲面处理，触感柔滑细腻，不起粒，具有非常柔和的涂抹延展性。
Made of natural plant ingredient, special process of the core creates soft and smooth tactility, no granule with very soft quality of extension.
在这个莫比乌斯曲面上我们不仅看到空间的无限延展，而且其纯白的质地也暗示了材料选择的无限灵活。
We see on this Moebius strip not only the infinite extension of space, but also unlimited flexibility of material selection, suggested by its pure white appearance.
在这个莫比乌斯曲面上我们不仅看到空间的无限延展，而且其纯白的质地也暗示了材料选择的无限灵活。
We see on this Moebius strip not only the infinite extension of space, but also unlimited flexibility of material selection, suggested by its pure white appearance.
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