A
A1
B
B1
C
C1
180°
90°
0°
180°
90°
0°
M
M
M
N
N
N
2.8A
340
390
170
220
340
400
455
460
497
465
435
465
YDW2.8A
Q:3300-4500m
3
/h
P:500-450Pa
[1]
[2]
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[4]
[5]
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[8]
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