The nation's primary transportlaw, which sets guidelines for spending levels and priorities, expired in 2009.
美国第一大交通法对交通财政支出水平和交通建设重点作出指导性规定，但该法已于2009年停止生效。
2
Physical model test is to analyze the cooling water in the receiving waters in an effective way to transportlaw of diffusion.
物理模型试验是分析温排水在受纳水域中扩散运移规律的有效方法。
3
The aim of this paper is through the basic research to reveal the transportlaw of indoor particles, seek efficient way for dust removal to improve indoor air quality.