George Yule used to apply a vivid metaphor to define 'turn': if conversation is viewed as a market economy, turn is a scarce commodity.

As the deadlines for midterm papers and postgraduate entrance exams draw closer, seats in campus libraries and classrooms are a scarce commodity.

期中论文大限将至，考研也迫在眉睫，校园里图书馆和自习室可谓一座难求。

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Although this is the best choice if screen real estate is a scarce commodity, you might decide that making all of the choices visible is a better solution.

尽管这在可用屏幕空间非常有限的情况下是最佳选择，但您可能会觉得使所有的选项都显示出来是一种更好的解决方案。

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Engineers on the project say the technology is perfect for such a mission, where storage space on the flight to the planet is a scarce commodity.

计画工程师表示，这种技术非常适合这类任务，因为飞往火星的太空船上，载货空间相当有限。

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Attention economics is an approach to the management of information that treats human attention as a scarce commodity, and applies economic theory to solve various information management problems.

注意力经济是一种管理信息的方法，它能够将人们的注意力当作一种稀缺商品，并且运用经济学理论去解决各种各样的信息管理问题。

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Solidarity is a scarce commodity in the union nowadays.

在如今的欧盟，团结是一种稀缺品。

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Restrict the consumption of a relatively scarce commodity, as during war.

在战争时期限制相对紧缺商品的消费。

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In many communities, teachers are a scarce commodity.

在许多社区教师非常稀缺。

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Clean water has become a scarce commodity in many parts of the world.

净水是当今世界一个严峻的课题。

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Properties are a scarce commodity, so if you enter the market early, there is a bigger chance of high returns.

房产是一种稀缺商品，因此，如果你早进入市场，高回报的机会更大。

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And in many parts of the financial services industry, transparency is a scarce commodity.

而在金融服务业的许多领域，透明是稀缺商品。

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But, by the research of many scientific workers actually indicate that the reason of the scarce of the frequency spectrum resources is the existence of" the empty frequency spectrum", and not full using of the frequency spectrum resources.

但是经过大量科研人员的研究却表明目前频谱资源的稀缺是由频谱资源未得到充分利用并且存在大量频谱空洞所导致的。

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Unfortunately, due to historical changes and social reasons, coupled with dwindling folk artists and scarce of heires, Sayram sanam is on the verge of extinction.

令人遗憾的是，由于历史的变迁和各种社会原因，加之民间艺人日益减少，继承人的相继匮乏，赛里木赛乃姆已濒临消亡。

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Now, there are many problems of eco-tourism development in the protected areas such as unshaped exploitation and the scarce of efficient management, supervision, investment, community involvement that must to be studied earnestly.

目前我国自然保护区生态旅游存在着粗放开发、缺乏科学管理和有效监督机制、旅游投入不足以及当地社区参与少等诸多问题，需要对其开发和管理进行认真研究。

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Three main factors of restraining educational scientific findings from transforming to practical application are deficiencies of the educational scientific findings and the scarce of worker's scientific research ideas, and the academic management systems are not perfect.

制约教育科研成果向实际应用转化的三个主要因素是教育科研成果自身的局限、教育实践工作者科研理念与能力的缺乏、当前的学术管理体制不完善。

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Their common characters are scarce of organic matter, low content of nutrient, little CEC, weak eluviation, high content of calcium carbonate, profile developed a little and coarse soil texture.

有机质缺乏，养分含量低，阳离子代换量小，淋溶作用弱，碳酸钙含量高，剖面发育差，土壤质地粗是试区土壤的共同特征。

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However, under present circumstances, there are some restrained elements to settle down this problem such as shortcomings of the system, lack of integrity legal system and scarce of human resources in the countryside.

但在目前情况下，该问题的解决面临着制度体制政策弊端、法律支撑体系缺失、农村人才资源匮乏等诸多制约因素。

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In China, most of enterprises informatizations have been driven by project and scarce of long-term strategy, the study of risk governance of enterprise informatization still stays at its initial stages.

我国的企业信息化多以项目为驱动，缺乏长远的战略规划，对企业信息化风险治理的研究，还处于起步阶段。

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The main reason that why the real-estate is easy to bring about bubbles is that the scarce of the land, the lowness of the flexibility of the supply.

房地产之所以容易产生泡沫的原因主要是由于作为生产要素的土地资源的稀缺，供给弹性低。

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Because of kinds of reasons, residential building energy saving hardly was evaluated before, or done without systemic indicators, and the evaluation methods were also scarce of scientificity and applicability.

由于种种原因，以前的住宅建筑节能很少进行评价，或者是在进行住宅建筑节能评价时缺乏系统的评价指标体系，评价方法缺少科学性和适用性。

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And there are a few product series, and a little quantity and small scale in the famous products, and there is a scarce of the large enterprises with the national and international influence.

产品系列较少，名牌产品的数量少、规模小，缺乏众多的具有国内国际影响力的大企业；

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