The radius for maintaining an expressway is established by rationally arranging the maintenance machines according to the contents of maintaining job.
根据养护作业内容，通过对养护机械的合理配置，确定高速公路养护半径。
The radius for maintaining an expressway is established by rationally arranging the maintenance machines according to the contents of maintaining job.
根据养护作业内容，通过对养护机械的合理配置，确定高速公路养护半径。
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