开关smcm9pw -m9nw磁性- -m9na -ddm9bw-dd-感应器dm9ba dm9pal

--m9nw-dm9nad开关ddm9pw d---感应器l smcm9bam9pa 磁性m9bwd

dd开关磁性-- m9pal smcm9bw--dm9ba感应- d-dm9nw dm9pw m9na