The Light Touch casts a big image from up close by bouncing lasers off a 0.4-inch microdisplay, using techniques from holography to keep the picture in focus despite the sharp projection angle.

这种轻触型工具播放的近距离图像是在0.4英寸的微小型显示器上反射的激光形成的，使用全息摄影术以保持图画尽管在投影尖角上依然聚焦。

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Up till now, there are two theories with regard to the projection of the focus: Selkok's focus projecting principle and the accent delivering principle.

当前关于焦点投射问题存在着两种理论：塞尔克科的焦点投射原则和句子重音指派原则。

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Dynamic focus voltage error of projection display system was studied in this article. Parabola dynamic focus method, projection tube shape and optics processing were analyzed.

从投影显示系统典型的动态聚焦方法与投影管特殊的荧光屏结构以及光学处理等方面对投影显示系统的动态聚焦电压误差进行研究。

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It was clear that there was an imbalance in the projection and focus of American power.

WHITEHOUSE: The White House