sr2中文什么意思

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沸水收缩性

sr2-xbax: 钙钛矿

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例句与用法

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Structural and electromagnetic properties of double perovskite sr2 - xbax femoo
6的结构和电磁性能研究
Zelio logic has been fully upgraded , and schneider electric will launch new generation smart relay sr2 and sr3 series products
Zeliologic智能继电器zeliologic全面升级，推出新一代的智能继电器sr2 ， sr3系列
Moreover , the diffraction peak shifts toward high angle as sr content increases . it is ascribed to the substitution of la3 + by sr2 + in lscf increases the average radius of a ions and causes a charge imbalance
且随着sr含量的增加，衍射峰值向高角度方向稍有偏移，这是由于低价sr ~ _ ( 2 + )取代高价la ~ ( 3 + )增加了a位离子的平均半径，同时引起电荷不平衡。
Because of the doped ions sr2 + and sn4 + entering into the matrix lattice evenly and crystallizing completely , the sintered ceramics of the nano - sized powder have dielectric constant ten times higher and dielectric loss sixty percent lower than those of pure batio3 phase at room temperature
降低，而且室温介电常数比batio3纯相提高近ro倍，而介电损失降低到1 / 8 ，烧结温度比传统微米级粉体的烧结温度降低150一200 。
In recent years , the colossal magneto - resistance effect in rare - earth manganite perovskites of the type lni . xaxmno3 ( where ln is rear - earth irons la2 + , nd2 + , p2 + ; a is alkaline earth iron ca2 + , sr2 + , ba2 + ) has attract considerable attention in scientific studies due to its potential application . however , the poor temperature dependence of mr and the low - temperature mr effect and the ideal mr only in high field severely limit their practical utility . in this work , we prepared manganite perovskite lai - xsrxmno3 and soft - magnetic ferrite materials fe2o3 and ( ni , zn ) fe2o4 by using sol - gel method separately
近些年来，人们发现在钙钛矿锰氧化物ln _ ( 1 - x ) axmno _ 3 ( ln为la ， nd ， pr等稀土金属元素； a为ca ， sr ， ba等碱土金属元素)中具有磁电阻( magnetoresistance )效应，由于它在磁记录，磁传感器方面具有广泛的应用前景，同时也向传统的磁记录材料提出了挑战，因而引起了物理学界的广泛关注。