Periodical analysis showed that abrupt change of sediment load happened in 1968 and 1984, which divided the variation process of river sediment load into three stages.
中国主要河流入海泥沙还具有明显的三个阶段变化特征，即分别在1968年和1984年前后发生了突变。
The reference information of periodical articles has an important information value in literature dissemination and communication, literature information retrieval and bibliometric analysis.
期刊论文的辅文信息在文献传递与交流、文献情报检索以及文献计量分析方面具有重要的情报价值。
Basing on the statistic and analysis of the Chinese technology periodical that have been registered by "the Engineering Index" (EI) from 1996 to 2001, this paper gives some advices how to contribute.
本文通过对美国《工程索引》(EI) 1996 ~ 2001年收录中国科技期刊的统计分析，为广大科研工作者科学应用ei提出了建议。
The present condition analysis for Chinese periodical market, the collectivized operation way for the industry of the Chinese periodical and reorganization strategy for industry of periodical assets.
中国期刊市场的现状分析，中国期刊产业的集团化运作途径，以及期刊业资产重组战略。
Simulation results show that the algorithm could be used not only in steady state signal analysis, but also in periodical non-steady state process signal analysis.
误差分析的结果表明，这种非同步取样数据的同步化算法，具有良好的同步效果，不仅可应用于稳态周期信号，也适用于周期性非稳态过程信号的测量和分析。
The paper indicates that raising periodical quality, strengthening periodical arrangement standardization and normalization are imperative through the analysis of error in edition process.
本文通过对论文的编排校对等编辑加工过程中出现的错误进行分析，指出提高期刊质量，加强期刊编排的标准化、规范化已势在必行。
Through the analysis of today's mobile satellite communication systems, it is found that not only the direction, but also the relative distance of the ISL are periodical.
通过对现有的卫星移动通信系统星间链路的分析发现，不但卫星移动通信系统星间链路的指向具有周期性变化的特性，而且星间链路的相对距离也在周期性变化。
A periodical survey, sort and historical analysis from the aesthetic angle about the early Chinese comedic films (1905 — 1950)is the thesis of the part.
其次，根据现代的喜剧电影概念划定的范畴，对中国早期（1905—1950年）喜剧电影进行分期、分类式的历史分析和美学描述。
The finite element method for vibration characteristic analysis of periodical gyro-structures is described in this paper.
本文阐述了回转周期结构振动特性分析的有限无法。
Further more, in view of periodical character of dam observation data, a frequency spectrum analysis method for data treatment is suggested.
针对大坝观测资料周期性较强的特点，首次提出了频谱回归及分析法。
It is proved by theoretic analysis that the algorithm has good performance on tracking periodical trajectory.
理论分析证明，这种控制算法对于跟踪重复运动的轨迹具有良好的效果。
It is proved by theoretic analysis that the algorithm has good performance on tracking periodical trajectory.
理论分析证明，这种控制算法对于跟踪重复运动的轨迹具有良好的效果。
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