... 非均匀流动 heterogeneous flow 非均匀沙 non-uniform sediment 非均匀沙 nonuniform sediment ...
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...非均匀沙；荫暴作用 [gap=1504] soil and water conservation; common tangential angle; threshold wind velocity; non-uniform sand; hiding-exposing action ..
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Based on non-uniformity,the grain shape coefficient is introduced. By analyzing influence of shape coefficient and exposure degree,the formulas for calculating equivalent grain and the incipient motion condition of non-uniform sediment are established by the relative exposure degree and shape coefficient.
根据非均匀沙颗粒的不均匀性,引入颗粒形状系数,通过分析泥沙颗粒形状系数和相对暴露度的影响,建立了等效粒径表达式;并通过泥沙起动受力分析,推导得到泥沙起动临界条件表达式。
参考来源 - 泥沙颗粒形状对非均匀沙起动条件的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
通过考察水流结构的改变，研究了非均匀沙的起动。
Bottom flow structure is changed because of the existence of the non uniform sediment.
在非均匀煤屑起动试验的基础上，对非均匀沙粗化过程中的起动作了探讨。
The threshold motion of nonuniform sediment is discussed by the experiment of nonuniform coal dust for threshold motion.
首先指出所谓宽级配泥沙，包括卵石等的起动流速必须按非均匀沙来研究。
At first, it is pointed out that in the study of incipient velocities of sediment, with a wide grading range including pebbles, the sediment should be regarded as one of nonuniform.
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