例句與造句

1. LCOS and modified LCOS projectors have improved on LCD contrast ratios while also eliminating the  screen door effect of small gaps between LCD pixels .  Dark chip DLP projectors improve on the standard DLP design and can offer relatively inexpensive solution with bright images, but the black level requires physical baffling of the projectors.
2. It's difficult to find lcd contrast in a sentence. 用lcd contrast造句挺難的