四参数模型 meaning in English
four parameter model
Examples
- Model of 60ghz millimeter wave with four variables
毫米波的四参数模型 - This paper discussed the coordinate transformation method of wgs84 coordinate system to 1954 - beijing gauss grid coordinate . introduced transformation model of wgs84 to beijing 54 and computing method of transformation parameter . according to different model and computing method , computed and compared with the result combine real data
本文详细讨论了wgs84大地坐标转换到北京54坐标系下的高斯平面坐标的方法，重点介绍了wgs84和北京54的空间直角坐标的转换模型及转换参数的计算方法，并根据不同的模型和计算方法结合实际数据进行计算和结果的比较，认为采用基线向量求解的四参数模型具有较高的转换精度，分区变换和提高控制点精度也能提高转换的精度。 - 4 introducing damage variable , a new functional expression was created , which was based on the four - parameter concrete model . it indicates varying damage characteristics through service period of concrete structure , so as to analyze the time - depended reliability in every stage of structural service period
应用损伤力学理论，引进损伤变量，在混凝土四参数模型的基础上构造了一种新的功能函数，可以反映混凝土结构在使用期间的损伤变化的特性，从而分析结构在使用期间中各个时期的时变可靠度。