Friday, April 25, 2008

Heat (Convection)

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2 comments:

许志康的博客 said...

my peh zhikang here,i cnt seem to see the youtube video either from the website or ur website pls help i wan to revise ...

April 26, 2008 at 8:54 AM
LIB yan said...

this guy is funny

July 13, 2008 at 5:17 PM

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