This software package is easy to use , which owes to its friendly interface . it provides experienced researchers much convenience for noise prediction and estimation . even for those designers who are not familiar with ansys , it offers assistance to them for structure acoustics and vibration analyzing as well 软件界面友好、使用方便、易于人机交流，可让既使不熟悉ansys软件的工程设计人员也能很好地借助本系统进行结构振动声学分析，同时使有经验的研究人员能够在结构设计初期对结构噪声进行初步预测和评价。
Dam survey data analysis and the foundation of dam safety monitoring model are the central problem of the dam monitoring technology , they are not only monitored the dam safety work but also offered feedback information for engineering designers and are refreshened and perfected dam theories 大坝原型观测资料分析及安全监控模型的建立是安全监测工作的最终价值体现，是大坝监测技术的灵魂与核心，它不仅对大坝的安全运行起监控作用，而且还能为工程设计人员提供反馈信息，不断补充和完善坝工理论。
After a decade of development , zhongtian has become a leading company in the region . it owns 90 , 000 sq - ft manufacturing facility and employs about 200 employees , including a number of experienced engineers and technicians . the company is currently equipped with an array of precision machinery including forging and hot pressing equipment , nc lathes , and other related testing equipment 经过近10年的艰苦努力，公司现占地8000平方米，现有员工200余人，并荟萃了一大批各有专长的技术工程设计人员，拥有一系列国内高精度的铜件锻压铸造金加工及相关的检测设备，并不断地引进国内外先进的铜件制造技术及管理模式。
Foundation structure design in soft soils is a very difficult engineering problem . the elastic foundation beam method has some merits such as easy calculation pattern and definite model and m - method is fit to practical situation , so it is used comprehensively and welcome by constructors , thus m - method is recommended by many codes . but it is difficult to select a m - value to some soils , and the codes provides a scope of m - values , and they are different in varied regions and soil conditions , thus it is optional to choose m - value of a soil layer for engineering designers . so it is necessary to calculate m - values by back - analysis method using measured datu of deep foundation pit 软土地区的深基坑支护结构设计是一个十分复杂的工程问题，由于弹性地基梁法具有计算模式明确、计算过程简单的优点，尤其是m法较符合软土基坑工程的实际情况，因而受到广大工程设计人员的欢迎，大多规范也推荐此法。但是m法计算参数的选取是工程界的一大难题，一般规范都给出了m值的大致范围，而且每个地区的地质条件千差万别，因而m的取值具有很大的随意性，有必要根据一个地区的工程实测资料对m值进行反演分析，以便为地层相近或附近地区的基坑工程设计提供参考和依据。
