But we were trying to address three key problems that plague digital projectors: lack of brightness, lack of contrast, and lack of sharpness.

但是我们一直试着解决困扰数码放映机的三大难题：亮度较低，对比度较差，清晰度不足。

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Finally, through the concrete experiment and analysis, validate the feasibility, validity and correctness of algorithms which are used to resolve the three key problems in system.

最后，对解决系统中三个核心问题的相应算法，通过具体的实验及对比分析验证了其可行性、有效性和正确性。

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Individual ideas and people are the key, obviously, but there are three problems with Britain's tech ecology that its government could ameliorate.

ECONOMIST: Entrepreneurship and technology

The company also has just emerged from a spate of labor problems, with two local union strikes at key factories and a nearly three-month strike at key parts maker American Axle and Manufacturing Holdings.

FORBES: Magazine Article

The company also has just emerged from a spate of labor problems, with two local union strikes at key factories and a nearly three-month strike at key parts maker American Axle and Manufacturing Holdings (nyse: AXL - news - people ).

FORBES: GM's Late Wake-Up Call