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-sv11p2--杜克m802nm804nv21s8bnv11p2m804p接近-开关- -bb 比
m802n--开关c21s1203p06nbnm804p--sv11s8传感接近-bb v11p2
bn--开关-c11s12接近m804p- -m802nv11p24n03bb-传感器sv21s8