Because volume production of new fittings of the device can be realized and an old tank can be singly reformed, the utility model is a device with the advantages of low cost and water saving.

又因本装置即可成批生产新配件，又可单独改造旧水箱，因此是一个低价格、高节水的装置。

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Not long after the Soviet Union invaded Afghanistan in 1979, Francis Fukuyama was just a green 27-year-old researcher at the RAND Corporation, the military-focused think tank.

1979年在苏联入侵阿富汗之后不久，弗朗西斯·福山还是兰德公司这一军事智库中年仅27岁的初级研究员。

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Jan Filip Stanilko,an analyst at the Warsaw-based Sobieski Institute, a political think tank, explains why the old plans made Poland feel more secure.

VOA: standard.2009.10.22