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11,42,31 12,22,41 11,41,20 12,42,20 11,21,40 11,21,41 11,41,21 12,42,22
11,42,31 12,22,41 11,41,20 12,42,20 11,21,40 11,21,21 11,41,21. 12,42,22
11,42,31
12,22,41 11,41,20
12,42,20 11,21,40
11,21,21 11,41,21
12,42,22
A42Y-25 A42Y-25C A42Y-25P A42Y-25R
a=12,y=12 a=14,y=16 a=16,y=20 a=12,y=12 a=14,y=26 a=12,y=12 a=14,y=26 a=14,y=44 a=12,y=12
(x,y) x+y≠0 (x,y) x+y>0 (x,y) x+y≠1 (x,y) x+y>0且x+y≠1
11,42,31 12,22,41 11,41,20 1,42,20 11,21,40 11,21,21 11,41,21 12,42,22
11,42,31
12,22,41 11,41,20
12,42,20 11,21,40
11,21,21 11,41,21.
12,42,22
a=12,y=12 a=12,y=12 a=14,y=1 a=16,y=28 a=12,y=12 a=12,y=12 a=14,y=26 a=14,y=44
a=12,y=12 a=14,y=16 a=12,y=12 a=16,y=28 a=12,y=12 a=14,y=26 a=12,y=12 a=14,y=44
若X→Y,则X→→Z 若X→Y,则X→→Y 若X→→Y,且Y'
Y,则X→→Y' 若Z=φ中,则X→→Y
11,42,31 12,22,41 11,41,20 12,42,20 11,21,40 11,21,41 11,41,21 12,42,22
11,42,31 12,22,41 11,41,20 12,42,20 11,21,40 11,21,41 11,41,21 12,42,22
11,42,31 12,22,41 11,41,20 12,42,20 11,21,40 11,21,21 11,41,21 12,42,22