By expanding, the EU has a remarkable tool for influencing its neighbours, but only in the right circumstances.

通过不断膨胀，欧盟有了能够影响近邻国家的强有力的工具，但是只能在合适的情况下才奏效。

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The installation tool maintains sleeve position in the hole while pulling the mandrel into, and expanding the sleeve until the mandrel breaks off at a predetermined point.

安装工具将套筒定位在孔内，同时向往外拉心轴，套筒受力膨胀，心轴在预定受力点被拉断。

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Thus the structure and concrete production condition of expanding tool have been obtained to meet the refacing demands for the expanding tool by choosing suitable regulation methods.

得到了展成刀具结构和具体生产条件，选择适当的调整方法，可保证满足刀具重磨要求。

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Since the system is designed to determine the legal status of workers based on names, Social Security numbers and potentially personal biometric identifiers of every working age adult in America, worries about the system becoming a tool for ever-expanding federal purposes are legitimate.

FORBES: New Immigration Measure Means Expanded Government Reach

So while Facebook has to back-engineer parts of its highly successful free communications tool into something that can make more money, Google is taking something that makes money and expanding it.

FORBES: How Google+ Could End Up More Valuable than Facebook