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2009 年 2 月 22 日 星期日  |
| I.S. Penmanship(我實快過你He~He~) |
分類: 未分類 |
dimmer swtich
volume controller
series circuit
parallel circuit
heating effect
filament
resistance wires
fuse
safety device
fuse rating
circuit breakers
mains voltage
three-pin plug
earth socket
live socket
neutral socket
ring circuit
electric shock
overloading
short circuit
electrical power
watt(W)
kilowatt-hour(kWh)
kilowatt-hour
magnetic-effect
electromangnet
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你傻左咩~打晒D IS PENMANSHIP上去~記得回CM呀
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