Objective: To observe the behavior and cardiovascular effects of repeated electric foot-shock combined with noise in rats of different stress cycles;
目的：观察不同周期足底电击结合噪音刺激对大鼠行为及心血管的影响；
Next, unloading-reloading cycles are repeated in constant loading rate test with Sanjome andesite and Inada granite; and unloading curves at many points along stress-strain curve are obtained.
其次，对三城目安山岩和稻田花岗岩在恒定速率下进行循环加载卸载试验，得到了应力—应变曲线上很多点处的卸载曲线。
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