| breakpoint instruction | 断点指令 | |
| breather | 换气装置,通气孔 | |
| breed standard | 品种标准 | |
| breeding ratio | 增殖比 | |
| bremsstrahlung | 轫致辐射 | |
| brevicide complex | 黄青霉素 | |
| bridge | 桥接器,电桥 | |
| bridge amplitude balancing | 桥式振幅平衡 | |
| bridge arm | 电桥臂 | |
| bridge balance | 电桥平衡 | |
| bridge circuit | 桥路 | |
| bridge connection | 桥路 | |
| bridge contact | 桥接式触点 | |
| bridge diagonal | 电桥斜杆 | |
| bridge feedback | 桥式反馈 | |
| bridge for measuring temperature | 测温电桥 | |
| bridge limiter | 桥式限制器 | |
| bridge megger | 桥式高阻表 | |
| bridge method | 电桥法 | |
| bridge network | 桥型网络 | |
| bridge rectifier | 桥式整流 | |
| bridge resistance | 桥路电阻 | |
| bridge resistor | 电桥电阻 | |
| bridge sensitivity | 电桥灵敏度 | |
| bridge type frequency meter | 电桥式频率计 | |
| bridge wire | 电桥标准导线 | |
| bridge's balance range | 电桥平衡范围 | |
| bridging | 桥接 | |
| bridle ring | 吊线环 | |
| bridle wire | 绝缘跨接线 | |
| brigg's standard pipe thread | 布立格标准管螺纹 | |
| bright field electron image | 明场电子象 | |
| brightness | 亮度,辉度 | |
| brightness control | 亮度调节 | |
| brilliance | 亮度,辉度 | |
| brilliance control | 亮度调节 | |
| brine | 盐水,海水,卤水,加盐处理 | |
| brine compartment | 盐水室 | |
| brine concentration | 盐水浓度 | |
| brine cooling system | 盐水冷却系统 | |
| brine disposal | 海水处理 | |
| brine freezing | 盐水冷冻 | |
| brine gauging tank | 盐水计量箱 | |
| brine heat exchanger | 盐水换热器 | |
| brine heater | 盐水加热器 | |
| brine loop | 盐水回路 | |
| brine regenerant | 盐水再生剂 | |
| brine solution | 盐溶液 | |
| brine system | 盐水系统 | |
| brine tank | 盐液箱,盐液槽 | |
| bring down | 浓缩,收缩,下降 | |
| bring in phase | 使同相 | |
| bring into operation | 投入运行,开动 | |
| bring into service | 使工作,使运行 | |
| bring into step | 使同步,整步 | |
| bring to critical | 使达临界,趋向临界 | |
| bring to power | 提升功率 | |
| bring to rest | 停车,停止运行 | |
| bring together | 集合,汇集,组装 | |
| bring-out | 引出接线,管道向外引出 | |
| bring-up | 结转操作 | |
| bringing into service | 投入运行 | |
| bringing on stream | (汽轮机)开始转动 | |
| bringing onto load | 带负载 | |
| bringing up | 提升功率 | |
| british Standard Fine Thread | 英国标准细牙螺纹 | |
| british Standard Institution | 英国标准协会 | |
| british Standard Institution (BSI) | 英国标准学会 | |
| british Standard Pipe Thread | 英国管螺纹标准 | |
| british Standard Specfication | 英国标准规格 | |
| british Standard Specification | 英国标准技术规范 | |
| british Standard Whitworth Thread | 英国惠氏标准螺纹 | |
| british Standard Whiworth Thread | 英国标准惠氏螺纹 | |
| british Standard Wire Gauge(BSWG) | 英国标准线规 | |
| british horsepower | 英制马力 | |
| british standard candle | 英国标准烛光 | |
| british standard screen scale | 英国标准筛制 | |
| british standard section | 英国标准型钢 | |
| brittle fracture | 脆性断裂 | |
| broad band amplifier | 宽频带放大器 | |
| broad band filter | 宽带滤波器 | |
| broad band random vibration | 宽带随机振动 | |
| broad band spectrum | 宽波段 | |
| broadband LAN | 定带局域网 | |
| broadband radio frequency cable network | 宽带射频电缆网络 | |
| broadcast | 广播 | |
| broadcasting frequency | 广播频率 | |
| broadcasting sweep-signal generator | 广播扫描信号发生器 | |
| broken wire | 断线 | |
| bronze | 青铜 | |
| brown and sharpe wire gage | bs线规 | |
| brown coal | 褐煤 | |
| brownian method | 布朗方法 | |
| brownian motion process | 布朗运动过程 | |
| brush | 电刷 | |
| brush and slotless motor | 无电刷槽电动机 | |
| brush angle | 电刷倾斜角 | |
| brush arc | 刷形电弧 | |
| brush arm | 刷臂 | |
| brush assembly | 电刷装配 |

