Existing 3-D TV (at least, the sort that does not need glasses) creates the separate images by showing them as alternating lines across the screen.
现有的3维电视（至少那种不需要眼镜的那种）通过在屏幕上不同的行列显示来达到这种不同的图像效果。
The Consumer Electronics Association estimates that 4 million 3-d TV sets will be sold in 2010, most of them in the fourth quarter.
消费性电子产品协会估计，2010年总计将会售出四百万台3d电视，第四季度将成为旺季。
Before you contemplate the answer, it's important to gain a clear understanding of what specifically defines a 3-d TV and what you need for a full experience.
在思考答案之前，很重要的是要清楚地理解3 D电视的特别之处、还有要全程体验你究竟需要什么装备。
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