Not using Oil or Waste as pumping medium, low operation cost.

工作方式不使用油或水，大幅降低操作成本。

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The open cast method is an advanced stripping technology with low operation cost.

拉斗铲倒堆剥离是一种先进的开采工艺，机械化程度高，开采成本低。

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The process is characterized by simple equipment, stable operation, easy control and low operation cost.

该处理工艺设备简单，系统运行稳定，操作方便，成本低。

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The expectation is that it would have an ultra-low operating cost, achieved through routine operation.

BBC: Skylon: Ending 40 years of hurt

Such efforts notwithstanding, Josef Schmidhuber, an agronomist at the Organisation for Economic Co-operation and Development, argues that Brazil's competitive advantage lies in churning out huge quantities of low-cost bulk commodities.

ECONOMIST: Brazil