A BSF can produce several dozen liters of clean water in an hour.

一套BSF系统在一个小时内可以产生几十升清洁的水。

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The typical BSF is 3 feet high.

（典型的净水器是3尺高）。

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Jellison's group is conducting experiments on BSFs of various sizes, including systems that fit inside two - and five-gallon plastic pails. (The typical BSF is 3 feet high.)

杰利森的研究小组正在开展各种生物沙子饮用水过滤系统的研究，包括2 - 5加仑塑料设备系统(典型的生物沙子饮用水过滤系统是3英尺高)。

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Giving evidence to the Education Committee on 27 July, Tim Byles, from Partnerships for Schools, said the list of schools affected by the decision to cancel BSF should have been double-checked with local authorities by the Department for Education.

BBC: Schools list 'should have been checked'

He argued that Labour's Building Schools for the Future (BSF) programme was "massively flawed" and over-bureaucratic.

BBC: Gove confirms cuts to school building projects

Councils have also been affected by the government's decision to scrap the multi-billion pound Building Schools for the Future (BSF) project, which led to the cancellation of hundreds of schemes.

BBC: Education & Family