... subbase footing 基?装? subbase layer 底基层 subbase plough 双层犁 ...
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Road pavement area: includes 2 pavement construction teams. Be responsible for production and other management work of selected layer, subbase layer and surface layer of this section.
路面工区：包括2个路面作业队。负责本标段的选定层、底基层和面层的生产等管理工作。
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