This paper analyzes the varying regularity about commodity prices under the market modification and with certain condition, demonstrates the stable conditions in price variation theoretically.
本文对市场调节商品价格变化规律进行了分析，并在一定条件下，从理论上证明了价格变化过程稳定的条件。
Stress of surrounding concrete of each draft tube is analysed by the finite-element method under condition of the highest hydraulic pressure and the variable regularity of stress is obtained.
基于有限元法，分析了两个尾水管在各自最大内水压力条件下外围混凝土的受力，得到各自的应力变化规律和特点。
In order to meet ride comfort, establish the start and shift control regularity that takes shock extent as constraint condition, and analyze the test results.
为了满足平顺性，建立了以冲击度为约束条件的起步与换挡控制规律，并对试验结果进行了分析。
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