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Archive for July, 2010
off07.22.10 How does optical fibre work ?
off07.22.10 How does transformer works ?
off07.22.10 How to charge my own MP3 player ?
off07.20.10 Introduction to remote control cars
off07.20.10 rechargeable batteries application
off07.20.10 Introduction of smart card
off07.16.10 let our dream fly in the sky
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