Since Cyclic economy concerns not only two big systems of economy and biology but also the enterprises' competition strength, it has special characteristics and active factors.

循环经济不但涉及到经济与生态环境两大系统，而且涉及到企业的竞争力，其显现出了自身的特点与积极因素。

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The Chaozhou gold lacquer woodcarving and the Zhejiang Dongyang woodcarving compound is the Chinese two big folk woodcarving systems.

潮州金漆木雕与浙江东阳木雕并列为中国两大民间木雕体系。

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Depending on how they are formed, the two kinds of systems have the very big difference in the library organization conformity.

由于形成的方式不同，这两类制度在图书馆组织整合中的作用有很大区别。

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New student test scores released by the U.S. Department of Education last week showed that Washington's fourth-graders made the largest gains in math among big city school systems in the past two years.

WSJ: D.C. Schools Chancellor Michelle Rhee Is Getting Results

The debate today is not between big government and free market capitalism but rather about how we should structure our mixture of these two systems.

CNN: Campaign 2012: The phony war of markets vs. government

It came two years later, in 1999, when the Melissa virus caused big U.S. corporate e-mail systems to collapse, resulting in billions of dollars of losses.

FORBES: Asia's Women In the Mix: Eva Chen Battles the Hackers