Creative 【 Multiplier 】 a book Use of electromagnetic valve and tricycles

Creative 【 Multiplier 】 a book Is to use electromagnetic valve and tricycle sina solenoid valve experts composed of time [ Multiplier 】 a book Tricycle in Beijing is a ubiquitous way of transportation. First of all, as a man in the input to the computer. Using custom computer software processing characters and transfer them to power system, electromagnetic valve drive array. Cart full of drive, electromagnetic valve in the release of water droplets at the back of the tricycle. Water precipitation on the ground and form of Chinese character slowly dissolve and then eventually dissipate.