英语翻译The U.S.Federal Highway Administration,FHWA (1999a) defi

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英语翻译
The U.S.Federal Highway Administration,FHWA (1999a) defines pavement preservation as:“all activities undertaken to provide and maintain serviceable roadways; this includes corrective maintenance and preventive maintenance,as well as minor rehabilitation projects.”
Routine maintenance is defined by PIARC (PIARC,1982a) as “Operations required to be carried out once or more/year on a section of road.These operations are typically small-scale or simple,but widely dispersed,and require skilled or unskilled manpower.The need for some of these can be estimated and planned on a regular basis e.g.,vegetation control.”

美国联邦公路管理局,美国联邦公路管理局（1999a）将路面保护定义为：“提供和维修巷道的行为；包括纠正性维护和预防性维护,以及小维护项目.”
日常维护由PIARC（PIARC,1982年）定义为“需要进行一次或以上/年的行动.这些操作通常是小型的或简单的,但广泛分散的,并且需要熟练或不熟练的人力.其中的一些定期估计与计划,例如,植被控制.”

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