The residual magnetic devices can include a core housing and an armature.

剩磁装置可包括铁心壳和衔铁。

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In which one of the main attempt is to develop good performance thin-film micro-magnetic devices.

其中的一种主要尝试，是研制性能良好的薄膜微磁器件。

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The residual magnetic devices can include a coil that receives a magnetization current to create a irreversible residual magnetic force between the core housing and the armature.

剩磁装置可包括线圈，其接收磁化电流以在铁心壳与衔铁之间产生不可逆剩磁力。

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It urged supermarkets to introduce measures such as coin-operated trolleys, magnetic devices to prevent them leaving the store's grounds, or agreeing a deal to pay the costs of recovering trolleys.

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If one researches zero-point energy and the discoveries of broken parity (Dr. Lee, Nobel Price winner in 1958 for demonstrating broken parity) found to exist in the fundamental atom forces, there is no reason why magnetic energy devices can not be developed.

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Among today's data-storage devices, magnetic tapes can degrade within a decade, while hard disks are expensive and need a constant supply of electricity to hold their information, creating huge need for power for the "data farms" behind cloud computing.

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