In this paper, we expound the existence of grey factors influence beyond man control system, present grey factors input output theory and model involving grey factors.

阐述了一般经济系统外灰要素影响的存在性，提出了包括灰要素影响量在内的灰色投入产出理论与模型。

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The muscular man is working hard to control a powerful drill that is cutting through the rock that surrounds him.

VOA: special.2009.03.23

Instead of a young man full of life, they saw an old man who could not speak clearly or control his shaking.

VOA: special.2010.06.20

In nineteen eighteen, a man named Arthur Davis proposed building a dam to control the Colorado River.

VOA: special.2010.10.27

The larva would become a man in control of his body, and she would accept it and smile.

NEWYORKER: The Slows

In an incident that left neighbors in a Glendale, California, neighborhood surprised but relieved that no one was hurt, a man lost control of his black Cadillac as he drove down his steep driveway Saturday evening.

CNN: Man headed to dinner drives car on to neighbor's roof

"I don't have to worry much about business details, " says the man in creative control.

FORBES: Fashion's Hard Case