Carbonation method is one of the high efficiency and low cost methods to treat the oil residue.

碳化法是利用废气中的二氧化碳来处理石油碱渣，是一种高效且成本低廉的石油碱渣处理方法。

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Quantitative analysis methods include recount cost methods and lever analysis methods and possibility analysis methods.

定量分析包括：重置成本法、杠杆分析法、概率分析法。

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The key was to identify low-cost methods of achieving the same effects with readily available, commercial- grade silicon.

问题的关键是以以有效的方式确定低成本的方法，并能达到相同的效果，也就是商业级别的硅。

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FAO official Rene Czudek says the main aim is to provide low-cost methods to deal with wild animals without harming them.

VOA: special.2010.07.27

And,friction stir welding uses fewer workers at less cost than other methods.

VOA: special.2009.12.30

These range from planting mangroves to increase water catchments in high flood regions to providing low-cost risk transfer methods to farmers in developing countries.

CNN: Risky business: insuring countries against climate catastrophe

From the biggest ad agencies in the world to the most cutting-edge digital idea shops and deliverers, digital media has become one of the most cost-effective methods of reaching an audience.

FORBES: Think More, Think Local

"Vivendi Universal considers this sudden withdrawal to have been motivated by Deutsche Telekom's wish to appropriate the shares of PTC at the lowest possible cost, using methods which Vivendi regards as unlawful, " said a statement on the media group's website.

BBC: NEWS | Business | Deutsche Telekom sued by Vivendi