其中钕铁硼磁钢化学稳定性较差，在磁滚筒内潮湿的空气中，易出现表面氧化逐步分层剥落的现象。
One ndfeb magnets chemical stability is poorer, in magnetic drum in humid air, easy appear on surface oxidation gradually layered peeling phenomenon.
其中钕铁硼磁钢化学稳定性较差，在磁滚筒内潮湿的空气中，易出现表面氧化逐步分层剥落的现象。
One ndfeb magnets chemical stability is poorer, in magnetic drum in humid air, easy appear on surface oxidation gradually layered peeling phenomenon.
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