Boulder 卵石
Box caisson 沉箱;箱式沉箱;匣式沉箱
Box Culvert 箱涵;箱形涵洞
Box Drain 水沟渠;匣形沟渠
Box girder 箱形梁
Bracing 支撑
Bracket / Chassis 拖架
Brake failure, Defective brake 煞车失灵
Brake light 煞车灯
Brake Reaction time 煞车反应时间;制动反应时间
Braking Distance 剎车视距(停车视距)
Braking system 煞车系统
Branch and Bound Algorithm 分枝界定法
Breakdowns 故障
Breaking of Emulsion 乳化沥青黏结
Breaking Wave 碎波
Breakaway 脱离式接头
Breath alcohol concentration 呼气酒精含量
Brick Pavement 砖铺路面;砖铺面
Brick Pavement Road 砖铺路
Brick Road 砖面路
Bridge 桥梁
Bridge Abutment 桥台
Bridge Approach 桥粱引道
Bridge bearing 桥支承
Bridge deck 桥面板
Bridge deck/floor 桥面
Bridge expansion joint 桥面伸缩缝
Bridge floor 桥面
Bridge head 桥塔
Bridge inspection 桥梁检测
Bridge Management System 桥梁管理系统
Bridge pier 桥墩
Bridge railing 桥栏杆
Bridge span 桥跨
Brightness 照杜;辉杜;明亮度
Brightness contrast 辉度对照比
Brittle fracture 碎裂
Brittleness 脆性;脆度
Gravel Road 碎石路
Broken Stone Surface 碎石路面
Broken-back Curve 断背曲线
Broken-Beach Grade Line 破背坡度线
Benkelman Beam 彭柯曼梁