Through model tests, it has been found that the effective mass coefficient for the soil is around 0.2 for artificial islands with height-to-diameter ratio being smaller than 1/3.
地震时人工岛内回填土只有一部分有效质量参与地震响应，通过模型试验，高径比小于1/3的人工岛回填土有效质量系数在0.2左右。
The precondition of the acceleration testing method is the determination of the train resistance, rotary mass coefficient and train mass. The crucial test is measurement of train acceleration.
加速度测试法的先决条件是确定列车基本阻力、回转质量系数和列车质量，而其测试关键是列车加速度的测定。
The precondition of the acceleration testing method is the determination of the train resistance, rotary mass coefficient and train mass. The crucial test is measurement of train acceleration.
加速度测试法的先决条件是确定列车基本阻力、回转质量系数和列车质量，而其测试关键是列车加速度的测定。
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