隧道电导与铁磁电极的磁化方向相 关的现象称为磁隧道阀效应（magnetic valve effect）。室温下，Fe/Al 2 O 3 /Fe 型隧道结 磁电阻变化率达18%，因此TGMR 磁头具有很高的灵敏度。
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The principle of magnetic valve type controlled reactor is introduced. based on a example, its applicable effect in reactive compensation is discussed.
摘要简要介绍了磁阀式可控电抗器的基本工作原理，并通过实例说明了其在无功补偿中的应用效果。
Compared with several other electromagnetic valves in effect of removing water ham mer, timing magnetic valve is considered the best of all.
比较了几种电磁阀消除水击的效果，认为延时电磁阀最优。
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