the paper introduced the principle of flip-flop shooting by two sources, operational geometry and parameter setting of instrument for implementing alternatively sweeping by two sources and analyzed the efficiency of construction with flip-flop shooting by two sources.

because the operational modal parameter identification is influenced by many factors and its theories are complex, so this thesis lays some certain foundations of the health detection of bridges which is based on the operational modal parameters identification methods of a bottom-through concrete-filled steel tube truss arch bridge.

由于运行模态参数识别的影响因素较多，理论较复杂，所以本文基于一座下承式钢管混凝土桁架拱桥研究运行模态参数识别方法，为桥梁健康监测系统建立打下一定的基础。

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operational modal parameter identification is under the state of real operation of structures. it has higher accuracy and becomes more coincident with the actual conditions of structures.

运行模态参数识别是在结构实际运行状态下进行的模态识别，它具有更高的识别精度，更符合结构的实际状况。

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based on this prototype dynamic test, the operational modal parameter of the guide wall is identified under flood discharge excitation during flood season.

在此基础上，以泄流荷载为激励源，利用动力响应对导墙结构的工作模态参数进行了动态识别；

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the operational modal parameter of hydraulic structure with the output response only under flood discharge excitation is still a new topic.

在泄流激励下，仅利用结构的流激振动响应识别结构的工作模态参数是一项新的课题。

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the modal parameter identification methods include the traditional modal parameter identification and operational modal parameter identification.

模态参数识别一般包括传统的模态参数识别和运行模态参数识别。

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research of riding stability of passenger cars based on operational modal parameter identification

基于运行模态参数辨识的客车运行平稳性研究

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the structural design of dano fermentation roller and operational parameter are studied using pilot plant test. it is pointed out that rising the average packing rate and prolonging stationary time are the key to the structural design.

通过工业中试研究了DANO发酵滚筒的结构设计及工艺运行控制参数，指出提高平均填充率，延长停留时间是结构设计的关键；

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the controller may through the jmf news which receives, judges the type of the jmf information, thus analyzes and calculates the concrete step and the operational parameter of the paper cutting machine.

控制器可以通过接收到的JMF消息，判断出JMF消息的类型并进而解析和计算出切纸机工作的具体步骤和工作参数序列。

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simulating station boiler working in any performance situation is becoming more and more important to develop a training simulator of power plant because of that station boiler has complex structure, nonlinear and multi couple operational parameter.

在热力发电厂培训仿真机开发中，锅炉系统由于结构复杂，非线性，多参数耦合的特点，对其全工况实时仿真的研究显得尤为重要。

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through the theoretical analyses, clamping harvest digging area is determined, and through the orthogonal regression tests, the best operational parameter of the digging and feeding installation is determined. 6.

通过理论分析，确定了夹持收获挖掘区，通过正交回归试验确定了该挖掘输送装置的最优工作参数。

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attributive fuzzy clustering and association rule calculation. an uncertain description of all the boiler's operational parameter is obtained by the attributive fuzzy clustering method and representative parameters are selected;

该方法融合属性模糊聚类和关联规则算法两种数据挖掘技术，利用属性模糊聚类方法建立锅炉各运行参数对类别的不确定性描述，选择出代表性分析参数；

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in field seismic data acquisition, the quality of operational parameter acquisition is determined by testing methods, eventually the quality of acquisition project is determined.

在野外地震资料采集中，试验方法确定采集施工参数的质量，也最终决定采集工程项目的质量。

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the heat pump-based heating system was not equipped with adequate well-functioning operational parameter indicators.

热泵供暖系统运行参数计量仪表配备不完善等。

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with the given operational parameter, 1.5 m underground the soil is the proper depth of the pipeline.

在给定的运行参数下，输油管埋深1.5m是比较合适的设计尺寸。

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the operation procedure of wet oxidation process and related control solution for operational parameter are discussed.

考察了湿式氧化法处理运行过程，以及相关参数的控制方案。

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numerical study on operational parameter effect on settling in horizontal flow sedimentation tank

水厂沉淀池运行参数对沉淀效果影响的数值模拟

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according to the research on the sintering character of all kinds of the breeze, make the technician grasp and adjust the operational parameter precisely, and reduce the governing time.

通过开展各种矿粉烧结性能研究工作，使烧结工作者对各种矿粉的烧结性能有了更深的认识，在实际生产中，更能把握和正确调整操作参数，缩短确定最佳操作参数的调整时间。

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operational risk as a factor of maturity

一个成熟度因素：操作风险

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in each gradient zone, the industrial estate land had the most complex shape, the lowest area percentage of each zone and the biggest mean patch size, whereas the communal facilities land and the residential land were opposite to the industrial estate land.

各个梯度带中工业用地形状最为复杂，所占比重最低，平均斑块面积最大；

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the communal facilities, sporting studios and swimming pool take advantage of the expansive views over the landscape.

所有的配套设施如体育室和游泳池都充分利用了宽阔的自然景观。

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