As a new construction system, shipping container architecture has shown its tremendous potential at the efficiency of construction, economy and sustainability, etc.

摘要集装箱建筑作为一种新兴的建造体系，在建造效率、经济性以及可持续性等方面展现出了巨大的潜力。

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Project manager responsibility system and project cost keeping system are two effective measures to improve the level of management and efficiency of construction enterprises.

工程项目施工管理推行项目经理责任制和项目成本核算制是提高施工企业管理水平和效益的有效措施。

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It provides a scientific and effective method to enhance management level and efficiency of construction site.

为提高建筑工地的管理水平和工作效率，提供了科学、有效的管理方法和手段。

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Part of the Dreamliner's appeal to airlines is its increased fuel efficiency due to its construction of lightweight composite materials instead of metal.

CNN: STORY HIGHLIGHTS

California was able to achieve this efficiency by establishing building codes that require energy efficiency in new construction, and by stimulating private companies to improve the efficiency of their own operations.

FORBES: Sustainability Lessons for the Big Apple

Observers are divided as to the best way of expanding hydropower, with some urging the construction of major new dams on grounds of efficiency while others promote smaller, community-level installations for social and environmental reasons.

BBC: Woman pumps water from standpipe. Image