其根本差别只在于保证率频率法是人为地确定频率，而综合历时曲线法本身固有一个频率。
The substantial difference lies in that guaranteed rate frequency method determines the rate artificially, but synthetic duration curve method has its intrinsic frequency.
本研究的贡献在于，以历史法和统计法等多种方法相结合，廓清了清代江西解元和举人分布的共时态、历时态特点。
Contribution of this dissertation is to comb out the Characteristics of distribution of Jie-yuan and Ju-ren in Jiangxi with a conjunct method of history and statistics.
讨论了采用年多个样法选样时，城市短历时暴雨的指数分布的统计特征。
The statistical characteristics of exponential distribution of urban short-duration rainstorm are studied when the rainstorm series are chosen by annual multi-sampling method.
为了研究盾构法隧道管片衬砌结构强度的历时老化和衰减及其服务寿命的预测问题，提出了对其进行耐久性设计的一种基本方法。
The mechanical properties of segment linings for deep and long tunnels of west route of South-to-North Water Transfer Project are analyzed by using numerical simulation method.
通过用AB活性污泥法对处理豆制品废水工艺的试验研究，确定了优化工艺参数，包括溶解氧、 污泥负荷、曝气历时，并在选定的工艺条件下对豆制品废水进行了试验。
Treatment process of bean products wastewater with AB activated sludge has been studied. Through experiment, the optimum parameters, including DO, sludge load and time of aeration were determined.
通过用AB活性污泥法对处理豆制品废水工艺的试验研究，确定了优化工艺参数，包括溶解氧、 污泥负荷、曝气历时，并在选定的工艺条件下对豆制品废水进行了试验。
Treatment process of bean products wastewater with AB activated sludge has been studied. Through experiment, the optimum parameters, including DO, sludge load and time of aeration were determined.
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