These pure verbal artifices do not change the essence of the matter.
這些純粹是文詞上的花樣,并不能改變問題的實質.
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There are some tools which realise this kind of artifices.
一些工具實現了這些方法.
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Several artifices are used to simulate an impression of 3 D - like perspective, shading, movement, stereo - vision .
一些方法被用來模擬類似于3D的透視圖, 陰影, 運動, 立體效果.
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