请求高手翻译（谢绝工具翻译） 有奖励！

China's more than 90 percent of highway asphalt pavement at the end of the grassroots and the grassroots semi-rigid material. Semi-rigid asphalt pavement has become China's high-grade highway asphalt pavement of the main types. • five of seven, national organizations launched the "high-grade highway semi-rigid, heavy traffic asphalt road surface and anti-sliding surface of" research work, the asphalt mixture of high temperature stability, low-cracking, asphalt The mechanism of surface cracking, rutting and fatigue, anti-sliding surface design and application, semi-rigid material characteristics and the strength of contraction, such as component design requirements for an in-depth research work and a more complete report on higher Grade Road semi-rigid asphalt pavement design and construction to provide a theoretical basis and technical assurance.