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abrasiveness 磨耗度
absolute datum 绝对基面
abutment 桥台
abutment pier 制动墩
acceleration lane 加速车道
accidental load 偶然荷载
accommodation lane 专用车道
acoustic barrier 隔音墙
acting circles of blasting 爆破作用圈
additional stake 加桩
adjacent curve in one direction 同向曲线
admixture 外加剂
adverse grade for safety 反坡安全线
aerial photogrammetry 航空摄影测量
aerophoto base 航摄基线
aerophoto interpretation 航摄像片判读
aging 老化
aggregate 集料 (骨料