background component meaning in Chinese

背景变量

After analyzing the common examples of wind effect on long span roofs , it can be found that the background component occupies prevailing proportion of the totality , while the resonant component only occupies small proportion
分析两种体系屋盖的常见实例，可以发现背景分量占主要地位，共振分量占较小的比例。
After summing up the background component in these two items , the background and resonant components of wind - induced response and eswl can be decided . the modal solution is applied to obtain the wind - induced response and eswl on beams supporting roofs
将非交叉项的贡献分为背景分量和共振分量，将交叉项的贡献确定为背景分量，从而将模态交叉项和非交叉项的贡献与背景分量、共振分量确立起对应的关系。
The modal solution , which is based on modal dynamic analysis , is presented to obtain the wind - induced response and eswl on civil engineering structures . the contribution of modal cross - correlation items is considered as background component , while that of modal non - cross - correlation items is separated as background and resonant component
再次，本文提出建筑结构风致响应和等效风荷载的模态解法，首次澄清了模态交叉项和非交叉项对于背景分量和共振分量的贡献。