In recent years, underground economy has become a burning field of research all over the world.

最近二三十年，地下经济问题逐渐成为国内外学术界的一个研究热点。

Analysis in reality is on tax reason and non-tax reason why underground economy exists in our country.

现实分析主要从我国地下经济产生的非税收原因和税收原因两个方面进行分析。

Because at that time, the underground economy had not displayed the inflation tendency, the research scope was quite limited.

但由于当时地下经济并没有表现出膨胀的趋势，所以研究的范围还是比较有限的。

This thesis is basically concerned with Underground Economy, an area that remains to be fully understood but has attached increasing attention.

本文研究一个还没有被充分认识但日益受到人们关注的经济活动领域——地下经济。

All bloggers know that the way to get links is to engage in the secret underground economy of sucking up to bloggers with higher Technorati rank than you.

所有博客作者都知道，得到链接的方法是参与到吸收拥有比自己更高的Technorati排名的博客作者的神秘地下系统中。

Until Second World War period, some scholars only started to these economic phenomena to conduct the research, contained the underground economy research.

直到第二次世界大战期间，一些学者才开始对这些经济现象进行研究，其中也包含了对地下经济的研究。

Because of the transaction costs, while engaging in economic activities people are faced with two alternatives: underground economy or overground economy.

由于交易成本的存在，使人们在进行经济活动时，面临着地上经济还是地下经济的选择。

Contrasted with the underground economy, recessive industry is a special industry characterized by its relativity, extensiveness, scale, and transitivity.

隐性产业是一种特殊的产业形态，它与地下经济有着明显的界分，存在着相对性、外生性、规模性、过渡性等特征。

Speaking in Texas close to the border with Mexico, Mr Obama said bringing illegal immigrants out of the underground economy would be good for the country as a whole.

在得克萨斯与墨西哥边境处发表讲话时，奥巴马称，总体来说，将非法移民从地下经济中挽救出来对美国来说是好事。

Meanwhile, this study also tentatively discussed some positive influences, and this can help us understanding the characters of underground economy more deeply.

与此同时，本文也就地下经济的部分有益影响进行了初步探索，这一认识有助于更全面的理解地下经济的性质。

The"underground economy"is usually termed as informal economic activities, and it is not purely negative as economists assumed from an aspect of institutional economics.

“地下经济”通常被称为非正式经济活动，如果从制度经济学的角度来解释地下经济，那么，它并不是一种完全消极的经济活动。

They are the lost generation of an underground economy: Brought here illegally by parents, they grew up in American neighborhoods, attended American schools and made American friends.

他们是地下经济的失去的世代：由父母非法地带来这里，他们长大在美国邻里、被出席的美国学校和被制作的美国朋友。

As long as China's economy was racing along at an 11 percent growth rate, small companies could hope for enough business to stay a step or two ahead of their underground creditors.

只要中国的经济沿着11%的增长率高速前进，小型企业们就有希望会有足够的商业机会来使其维系领先其地下债主们一到两步。

And a vigorous and growing underground (black) economy makes a big difference.

同时一个活力且持续增长的地下(黑色)经济产生了很大的差别。

There is tax losing either in underground or open economy.

无论地下经济还是公开经济都存在税收流失问题。

In the essence, this is a problem that how to achieve rationality, economy, safety in the design of underground parking area.

从本质上说，这是一个研究如何实现抗拔桩在地下车库设计中的合理性，经济性，安全性的问题。

The scale of development and utilization of urban underground space expands with the enhancement of urbanization and economy level in a city.

随着经济水平和城市化水平的不断提高，城市地下空间开发利用规模不断扩大。

With the rapid development of national economy and the demand of mankind lives, an abundant of natural resources underground is exploited out.

随着国民经济的飞速发展以及人类生产生活的需要，大量地下自然资源被开采出来。

With rapid growth of urban economy and concentration of population, there is urgent need to construct urban tunnel and underground projects.

随着城市快速经济的增长及人口的高度集中，城市隧道及地下工程的修建日益迫切。

Therefore, reasonable bolt support scheme is of great importance to both safety and economy of underground engineering.

因此，合理的锚固方案对地下工程的安全性和经济性有着重要意义。

On one hand, the underground finance promotes the economy, on the other hand, it harm the formal finance .

地下金融一方面促进了经济增长，另一方面对正常的经济金融构成危害。

With the superiority of technology and economy, EPB shield machine has been in the overwhelming dominance and become the mainstream in construction technology of urban underground engineering field.

而其中土压平衡式盾构机(epb)又以其技术及经济上的优越性，在盾构施工法中占有绝对的优势地位，成为城市地下工程施工技术的主流。

In recent years, the underground financial industry has developed to such a large scale that it has become a significant power affecting the development of economy.

近年来，我国的地下金融业出现了一个较快的发展势头，规模已经相当可观，成为影响经济运行的一股重要力量。