以下为句子列表：
英文: A non-driving-force approximation is presented for the description of dynamic response of a spherical porous particle subject to a step change in the surface concentration.
中文: 摘要本研究推导用于描述因颗粒表面浓度阶梯式改变所导致动态行为之非驱动力近似式。
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英文: The shake wave appear in the datum of strain and ground deformation, the step change appear in the datum of water temperature and water level, and the ability difference of recording earthquakes is large.
中文: 应变及地倾斜出现幅度不同的震荡波，水温和水位大部分出现明显阶变，且不同的仪器记震能力相差很大。
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