These pure verbal artifices do not change the essence of the matter.
这些纯粹是文词上的花样,并不能改变问题的实质.
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There are some tools which realise this kind of artifices.
一些工具实现了这些方法.
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Several artifices are used to simulate an impression of 3 D - like perspective, shading, movement, stereo - vision .
一些方法被用来模拟类似于3D的透视图, 阴影, 运动, 立体效果.
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