Method: Using plant single cell plate culture technique.
方法：利用植物细胞平板技术培养。
It introduces the principle, equipment and method of deep plate loading test by self-balance method, and compares it with the traditional loading test of single pile.
介绍自平衡法深层平板载荷试验原理、试验设备及试验方法，并将其与传统单桩静荷载试验进行效益对比分析。
By the variational method, the governing equation of the plate non-linear theory is solved, and he relationship between load and deformation of a single spring leaf is obtained.
应用薄板非线性理论的变分方法求解基本方程，得到了单片碟形弹簧的载荷和变形关系以及应力分布及其计算公式。
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