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有三台设备,分别是车、铣和磨。每一台设备的质量合格率为0.95,不合格品进入下一道设备加工,那么最终输出的质量应该是0.95^3到0.95之间,请问哪位大侠帮看看用Witness怎么仿真?$ ~& g. U) [# @- u/ a+ s% s5 P
5 c, p2 S' |8 `8 t4 H/ X: l; ]" I我自己参考别人的仿真(但是输出的结果变化不在0.95^3到0.95之间,请问错在哪里):
6 Q! y& B" T: I, f5 o车床:
9 g' g; J2 a% m7 E F1 kaction on finish:2 G) t/ z6 @: u$ C
IF RANDOM (1) <= 0.05
6 c/ N) N- z. @8 a) Q PEN = 1
9 P2 @ v: T% |* O W S! \; e( h C = "pink": L+ x1 P- H" B& x; t
ENDIF
, ]5 h N, e- w
; }8 J+ j3 T! S* d2 m9 B铣床:0 d; H6 M' [. g, ^) _( X+ W
action on finish:
- W3 ~) B2 Y( IIF RANDOM (2) <= 0.05 % x$ C# V$ ~. y& h
PEN = 2" h& h( F, V9 {4 r7 d; |, J+ R
D = "yellow"8 M4 _( |" L; |0 w, m
ENDIF
3 D) N# V) Y( S0 B; N3 ` }' S9 X$ c( w" _3 X+ D" t7 ^2 I9 ^
磨床:
; e: p5 A$ r* N' L: s: yaction on finish:$ s& d/ @1 f: `+ q; s# q. B. B: z
IF RANDOM (3) <= 0.05 & X5 B/ x4 d7 U% \# F
PEN =3
4 F* B$ x1 |1 i6 P7 V' x E= "green"
, W3 @$ o. s: yENDIF |
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