以下为句子列表：
英文: Abstract: The paper interprets alternant polarization phenomen on of even alternant hydrocarbons by discussing charge density on every position of even alternate when it is polarized using perturbational molecular orbitals( PMO).
中文: 文摘:本文用微扰分子轨道法(PMO)讨论了偶交替烃被极化时各位置上的π电荷密度，解释了偶交替烃π电荷的交替极化现象。
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英文: As the total negative surface charge of such complexes matches the surrounding charge density of the matrix, the SDS-protein complex stops migrating and remains stationary, as typical of steady-state separation techniques.
中文: 当复合物表面总的负电荷与周围基质的电荷密度一不能致时，与典型的稳态分离技术相似，SDS-蛋白复合物则不再迁移而保持固定。
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英文: Based on anti deflagration test method of coal industry standard MT378-1995, influences of fuel oil phase and charge density and residual mass of acceptor explosive on anti deflagration of permissible expanded ammonium nitrate explosive have been tested i
中文: 摘要根据煤炭行业标准MT378-1995规定的抗爆燃性测试方法，详细地测试和研究了油相组成、被发药装药密度以及与之相对应的被发装药的残药量对煤矿许用膨化硝铵炸药抗爆燃性的影响。
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英文: Based on test method of national standard of anti-deflagration, influences of moisture and charge density on anti-deflagration of permissible expanded ammonium nitrate explosive have been tested and investigated, residual mass of acceptor explosive have a
中文: 摘要根据抗爆燃性有关标准的测试方法，详细地测试和研究了水分和装药密度对受试的一级和二级煤矿许用膨化硝铵炸药的抗爆燃性的影响，同时测定了被发装药的残药量。
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英文: Considering the geometrical figure of tube and tip, we calculated the surface charge density relative distribution curve of metallic carbon nanotube.
中文: 摘要考虑碳纳米管尺寸及端帽形状，计算得到了比较精确的金属型纳米管表面电荷密度相对分布曲线。
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