应用流式细胞术分析烟草细胞在交变应力作用下细胞周期的变化。
Flow cytometry was used to measure cell cycle parameters in tobacco cell suspensions acted by alternative stress.
在铝薄带超常铸轧过程中，铸轧辊套温度场周期性的变化引起铸轧辊套内热应力场的周期性变化。
Roll shell's thermal stresses cyclically vary with the changes of its temperature field in the process of twin roll casting.
构造活动改变地层的空间形态，同时产生周期性的应力震荡变化。油气作为储存在地层中的流体矿产，在运聚期明显要受到构造活动的影响。
An active tectonic movement changes the space shape of stratum and result in periodic stress concussion, which will influence hydrocarbon migration and accumulation as fluid deposit in stratum.
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