Unload before stop the machine, or there will be left magnet. Next time when use, magnetize with accumulator cell or drycellbattery.
停车前要先卸去负载最后停车，如果带负载停车，可能引起剩磁，下次使用时要用蓄电池或干电池重新充磁。
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This article introduces the pollution of the environment for the waste and used battery, and waste drycell is used and handled of comprehensive, good results has been achieved.