You shouldn't face the knife switch direct when push or pull it, just in case that the short-circuit spark may burn your推拉闸刀开关时，脸部不允许直对电闸，以防止短路造成的火花烧伤面部。
You shouldn't face the knife switch directly when pushing or pulling it, just in case that the short-circuit spark may b推拉闸刀开关时，脸部不允许直对电闸，以防止短路造成的火花烧伤面部。