常見例句It shows hard , strong magnetism , stable temperature , uneasy demagnetisation and well anti-causticity .It is widely used in stationeties, motors, speakes and metal detectors, etc. 其材質(zhì)特點是硬而脆,磁性較強(qiáng),溫度穩(wěn)定性好,不宜退磁,耐腐蝕性好。cyclic demagnetisation 循環(huán)去磁 返回 demagnetisation