公路路缘石和行道树的灰水喷白是高等级道路养护工程的主要作业内容之一。
Cement water spraying of highway curb and roadside tree is very important in high grade road maintenance engineering.
公路路缘石和行道树的灰水喷白是高等级道路养护工程的主要作业内容之一。
Cement water spraying of highway curb and roadside tree is very important in high grade road maintenance engineering.
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