||Explain what the diagram shows and list the equipment
||Explain how to build the water-filter system
||Explain how to operate the system
||Write an overview of the diagram.
Và bây giờ là Sample nhé:
The diagram shows a method for filtering dirty water using a barrel and a drum, a pipe and two taps.
First, the drum and barrel are placed next to each other so that the top of the barrel is higher than drum. These items are linked by a pipe that runs from the bottom of the barrel into the side of the drum. Next, the filter is made by adding sand, charcoal and gravel to the barrel. Finally, a tap is fixed to the bottom of the drum and the top of the pipe.
The process begins when dirty water is poured into the barrel. After that, the water goes through the filter and up the pipe into the drum, where it is turned on, clean drinking water comes out.
The system shows how natural materials and basic equipment can be used to produce drinking water in just a few simple stages.
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