back arch 拱背
back elevation 后视图
back facade 背面
back painting 底面涂漆
back pressure 背压力
back saw 手锯
back siphonage 反虹吸能力
back square 曲尺
back surge 逆哩
back to back houses 背对背房屋
back up block 支撑块
back up wall 背墙
back view 背视图
back water 回流
backbone 构架
backer board 背衬板
backfill 回填
backfill compactor 回填土压实机
backflow barrier 逆止阀
background heating 背景供热
background noise level 背景噪声级
backhoe pullshovel 反向铲铲土机
backhoe shovel 反向铲铲土机
backhouse 后屋
backing brick 背衬砖
backing coat 底面涂层
backplastered construction 背面抹灰的构造
backstay anchor 拉霜定
backwater jump 逆柳动
backwater structure 滞水构造物
backyard 后院
bacteria bed 生物滤池
bacteria filter 生物滤池
badger 管道清理器
badger plane 槽刨
badigeon 嵌填膏泥
baffle beam 遮护梁
baffle diffuser 导铃式扩散器
baffle paint 覆面漆
baffle pier 消力柱
baffle plate 隔板
baffle wall 挡水板墙
bag cleaning device 袋装粉尘净化装置
bag conveyor 袋输送器
bag dam 袋状坝
bag filter 滤袋式滤清器
bag of cement 水泥袋
baggage elevator 运行李电梯
bagwork 装袋工作
bail handle 横木把手
baked brick 烧结砖
baked enamel finish 烧搪瓷装修
bakelite cement 酚醛尸水泥
baking 烧成
balance 平衡
balance pressure 平衡压力
balance storage 平衡贮水池
balanced cantilever method 平衡悬臂架设法
balanced construction of plywood 胶合板平衡结构
balanced draught 平衡式通风
balanced earthworks 填挖平衡的土方工程
balanced erection 吊挂装配
balanced flue 吸引力配平的烟道
balanced flue heater 平衡烟道热风供热设备
balanced gate 平横闸门
balanced load 平衡负载
balanced moment 均衡矩
balanced reinforcement 均衡配筋
balanced ventilation system 平衡通风系统
balancing 平衡蝶
balancing of stresses 应力平衡
balancing reservoir 第水库
balcony 阳台
balcony door 阳台门
balcony exterior exit 阳台应急出口
balcony slab 阳台板
balcony window 阳台窗
balk 粗木方
ball 球
ball bearing 滚珠轴承
ball clay 块状粘土
ball grinder 球磨
ball joint 球窝接头
ball jointed rocker bearing 球颈支承
ball lock 球形闸门
ball mill 球磨
ball room 舞
ball test 落球试验
ball valve 球阀
ballast 镇重物
ballast concrete 石碴混凝土
ballast covering 道床层
ballast crusher 道碴轧碎机
ballast pit 碎石料坑
balloon frame construction 轻捷骨架结构
baluster 栏杆柱
baluster of a staircase 搂梯栏杆
balustrade 栏杆
bamboo concrete 竹筋混凝土
bamboo filament 竹丝
band 带
band better lumber 一级锯材
band chain 带链
band filter 带式过滤器
band iron 带铁
band saw 带锯
band screen 带形筛
bandstand 舞台
bank 堤