IPC-TM-650 EN 2022 试验方法1.pdf - 第293页

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IPC-T-50
IPC-TM-650
Figure 1 Box
BOW
2
1
With constraining force applied
to both corners of the same edge.
1 & 2 deflection from surface plane.
Figure 2 Twist
B
A
x
x
x
x
C
Points A, B, C
Touching Base
With constraining force
applied to one corner only.
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