socioeconomic variable的意思|示意

When it came to the mental ability of 10-month-olds, the home environment was the key variable, across every socioeconomic class.

对于10个月左右的孩子，家庭环境对孩子的智力起到了确定性的作用，这一结论对于任何社会阶层都是成立的。

This model demonstrates how the socioeconomic variable, traffic serving level and the socioeconomic variable around traffic zones contributes to the trip generations.

出行生成模型：交通小区通达性和便利程度在很大程度上影响着居民的交通生成量，传统的出行生成预测模型无法反映这一特征。