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huangyhg 2008-06-12 09:48 PM
mathematical definition of dimensioning and tolerance principles AS<E Y14.5. M - 1994
 
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huangyhg 2008-06-12 09:49 PM
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huangyhg 2008-06-17 10:06 PM
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huangyhg 2008-07-03 09:20 AM
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