| bifilar | 双线的 | |
| bifilar coil | 双绕线圈 | |
| bifilar suspension | 双线悬吊 | |
| bifilar winding | 双股线圈 | |
| bifurcational value | 分歧值 | |
| big current | 大电流 | |
| big power network safety and regulation | 大电网安全和调控技术 | |
| big power station | 大型发电厂 | |
| bilateral current stabilizer | 双向稳流器 | |
| bilateral impedance | 双向阻抗 | |
| bilateral servomechanism | 双向伺服机构 | |
| bilateral transducer | 双向变换器 | |
| bilateral transistor | 双向晶体管 | |
| billion | 十亿 | |
| bimetal | 双金属 | |
| bimetal controller | 双金属调节器 | |
| bimetal relay | 双金属继电器 | |
| bimetal thermometer | 双金属温度计 | |
| bimetallic | 双金属的 | |
| bimetallic element | 双金属元件 | |
| bimetallic instrument | 双金属仪表,双金属式仪表 | |
| bimetallic plate | 双金属板 | |
| bimetallic standard | 复本位 | |
| bimetallic strip | 双金属条 | |
| bimetallic temperature transducer[sensor] | 双金属温度传感器 | |
| bimetallic thermometer | 双金属温度计 | |
| bimetallic thermostat | 双金属恒温控制器 | |
| bimetallic wire | 双金属线 | |
| bimetallism double standard system | 复本位制 | |
| bimodal volcanic complex | 双模式火山杂岩 | |
| bin drive motor | 分页格驱动电机 | |
| binary | 二进制的 | |
| binary adder | 二进加法器 | |
| binary arithmetic computer | 二进制计算机 | |
| binary base | 二进制基数 | |
| binary bit | 二进制位 | |
| binary cell | 二进制元件 | |
| binary character | 二进字符 | |
| binary circuit | 二进位电路 | |
| binary code | 二进码 | |
| binary code disc | 二进符号圆盘 | |
| binary coded decimal(BCD) | 二-十进制编码 | |
| binary control | 二进制控制 | |
| binary counter | 二进制计数器 | |
| binary digital | 二进制数字 | |
| binary elastic scattering event | 双弹性散射过程 | |
| binary elastic scattering peak | 双弹性散射峰 | |
| binary element | 二进制元,二进制元件 | |
| binary encoding | 二进制编码 | |
| binary flip-flop | 二进制触发器 | |
| binary hologram | 二元全息图 | |
| binary logic | 二进制逻辑 | |
| binary multiplier | 二进乘法器 | |
| binary notation | 二进制记数法 | |
| binary nubmer | 二进制数 | |
| binary number system | 二进计数制 | |
| binary operation | 二进制运算 | |
| binary output | 二进制输出 | |
| binary place | 二进制数位 | |
| binary point | 二进制小数点 | |
| binary product generator | 二进制乘积发生器 | |
| binary recording | 二进位记录 | |
| binary representation | 二进位表示 | |
| binary row | 二进制行 | |
| binary scaler | 二进换算电路 | |
| binary scaling circuit | 二进换算电路 | |
| binary search method | 二分检索法 | |
| binary signal | 二进制信号 | |
| binary to decimal conversion | 二十进制变换 | |
| binary to decimal converter | 二进十进制变换器 | |
| binary translation | 二进变换 | |
| bind | 绑缚 | |
| binder | 胶合剂 | |
| binding | 绑扎 | |
| binding energy | 结合能 | |
| binding material | 胶合剂 | |
| binding wire | 扎线 | |
| binomial | 二项式 | |
| binomial distribution | 二项式分布 | |
| binomial frequency distribution | 二项式频率分布 | |
| biochemical fuel cell | 生化燃料电池 | |
| biochemical oxygen demand meter for seawater | 海水生化需氧量测定仪 | |
| biochemical quantity transducer[sensor] | 生化量传感器 | |
| bioelectricity | 生物电 | |
| biogalvanic battery | 生物电池 | |
| biography | 简历 | |
| bioinformatics | 生物信息学 | |
| biological dosimetry | 生物学剂量测定 | |
| biological quantity transducer[sensor] | 生物量传感器 | |
| biological shield | 生物屏蔽 | |
| biological standard | 生物标准 | |
| biomedical analyzer | 生物医学分析仪 | |
| bionics | 仿生学 | |
| bioorganomineral complex | 生理有机矿物综合体 | |
| biopotential | 生物电势 | |
| biosensor | 生物传感器 | |
| biot savart's law | 毕奥萨伐尔定律 | |
| biotechnology | 生物技术 | |
| biotin complex of yeast | 生物胞素 | |
| bipartition | 对分,分为两部分 |

