ZZRS-WP088
80*60cm
Balls Games Wall Puzzle For Kindergarten Children Education


Balls Games Wall Puzzle For Kindergarten Children Education
To put the ball into the glass tube of different angles, watching the direction of movement. Exercise hand-eye coordination

Description


Oil Pumping Principle

Connecting rod through the cam drive pump piston up and down movement, the collection of water out of the water tank to the reservoir, showing the principle of mining oil.


Power generation by water and wind energy

The use of coal, oil, natural gas and other solid, liquid, gas fuel combustion heat generated by the power generation device into electricity

and the use of hydraulic to promote mechanical rotation, the water can be converted into mechanical energy, driven hydropower generator

power generation principle, Let the children understand the thermal power generation and hydropower is two kinds of traditional important

power generation way.


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