文档介绍：several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measuremen好高等级公路管理工作。
    第四条  高等级公路、高等级公路用地、高等级公路附属设施受法律保护，任何单位和个人不得侵占、破坏和损坏。
    第五条  鼓励、引导国内外经济组织依法投资建设、经营高等级公路。
    受让高等级公路收费权和投资建设高等级公路的国内外经济组织可以成立开发、经营高等级公路的企业〔以下简称公路经营企业〕，依照法律、法规和本条例的规定自主经营管理；也可以委托高等级公路管理机构管理。
    第六条  鼓励采用先进、适用的科学技术提高高等级公路的管理、养护水平。对在高等级公路科学技术研究和应用方面作出显著成绩的单位和个人应当给予奖励。
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line dis