The principles, processes, costs and (effects) of different disinfection techniques were summarized, especially a new method of slow sand filtration was introduced.

该文综述了国内外营养液消毒方法、原理、成本及应用效果，重点介绍了营养液消毒新技术-慢砂过滤。

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In return for better-structured, more efficient processes, costs can begin to get out of hand.

FORBES: The Critical Thresholds Of Change For Small Businesses

It will then use that advantage to build share, improve products, streamline processes, cut costs and achieve virtually unassailable advantage.

FORBES: Companies, People, Ideas

Precisia's president, James Rohrkemper, believes that the use of conductive inks and high-speed printing processes could cut antenna costs by 50%.

FORBES: Touchy Circuits