Underground-economy的意思|示意

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。

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。

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。

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。

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。