The effect of SnO _ 2 dosing on performance of SrTiO-3 doughnut-shaped varistor is presented.
笔者介绍了SnO2掺杂对 SrTiO3 环形压敏电阻性能的影响.
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An unraised doughnut, usually twisted but also shaped into rings or oblongs.
属于、关于或形状象环形 、 园环形.
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人类进入太空时代以来的首批探索成果之一,即是1958年对于地球周围高能电磁场的发现。
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