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1 8 100 70
2
3
( 50 )
1
(
A
8
C
" G (
300 25 ° 30 ° 25 ° 120
° 125 ° 125 ° 120 °
A B C D
3
A B
C D @
( ) ( 8 ) 1
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2
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Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
Scanned by CamScanner
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