qualitative variation

Numerical studies showed that small variation of the basic frequency might cause a qualitative movement change of the fibrous cap.

数值模拟结果表明，纤维帽内外压力差脉动频率的微小变化有可能导致纤维帽运动形式产生质的改变；

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The theorem provides probability and convenience for the study of space variation of original quantitative geologic variable through the study of variation of space series of qualitative geologic variable.

该定理为通过对定性地质变量的空间序列变异性研究以达到对原定量地质变量空间变异性的研究提供了可能与方便。

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Combining the qualitative knowledge and quantitative mathematical information of system, the approach provides good control over the nonlinear time varying system with wide variation of parameters.

该方法充分结合系统的定性知识和定量数学描述信息，实现了参数大范围变化时变系统的良好控制。

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affection of coal qualitative variation on boiler thermal efficiency

煤质变化对锅炉热效率影响的试验研究

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Using regression coefficient method, high steady coefficient method, variation coefficient method and adaptable qualitative parameter method, high-yield, steady-yield and adaptability characters of spring wheat varieties of northeast early-maturing group planted on nonirrigated farmland in 2002 were tested.

运用回归系数法、高稳系数法、变异系数法和适定性参数法对2002年东北春小麦早熟旱地组区域试验各参试品种（系）的丰产性、稳定性及适应性进行分析比较。

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ssrs thus provide a prolific source of quantitative and qualitative variation.

序列从而提供了一个多产的来源数量和质量的变化。

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