| journal | 杂志,轴颈 | |
| journal axis | 轴颈中心线 | |
| journal bearing wedge | 轴颈轴承楔 | |
| journal box | 轴颈箱 | |
| journal brass | 轴颈铜衬 | |
| journal centre | 轴颈中心 | |
| journal neck | 轴颈 | |
| journal rest | 轴颈支承 | |
| journal speed | 轴颈速度 | |
| journal with collar | 有环轴颈 | |
| journal-bearing | 轴颈轴承 | |
| joy stick | 操纵杆 | |
| joystick transformer | 调压变压器 | |
| jtl | 约瑟夫逊隧道结逻辑电路 | |
| judder | 不稳定 | |
| judge | 判断 | |
| juice | 电流(口语) | |
| jukebox | 光盘自动交换器 | |
| jukebox storage | 盘式存储器 | |
| jumbogroup | 巨群(频率) | |
| jump | 转移 | |
| jump address | 转移地址 | |
| jump condition | 转移条件 | |
| jump frequency | 跳变频率 | |
| jump function | 跃变函数 | |
| jump if not | 条件转移 | |
| jump in brightness | 亮度跃变 | |
| jump in temperature | 温度突变 | |
| jump instruction | 跳越指令 | |
| jump phenomenon | 跃变现象 | |
| jump resonance | 跳跃共振 | |
| jump spark | 跳跃电火花 | |
| jump valve | 回跳阀 | |
| jump weld | T型焊接 | |
| jump-spark coil | 点火线圈 | |
| jumper | 跨接线 | |
| jumper cable | 跨接电缆 | |
| jumper clamp | 跳线线夹,非直线杆塔跳线接续用的线夹 | |
| jumper plug | 插座 | |
| jumper tube | 跨接管 | |
| jumper wire | 跨接线,跳线 | |
| jumping | 跳动,跃变 | |
| jumping change in frequency | 频率跃变 | |
| jumping relay | 跳动继电器 | |
| junction | 结,连接 | |
| junction area | 结面积 | |
| junction board | 连接台,接线台 | |
| junction box | 电缆接线箱,接线盒 | |
| junction cable | 中继电缆 | |
| junction capacitance | 阻挡层电容 | |
| junction capacitor | 结电容 | |
| junction ccd | pn结型电荷耦合 | |
| junction center | 汇接局 | |
| junction circuit | 连接电路 | |
| junction class of thermocouple | 热电偶的端的类型 | |
| junction compensator | 冷端补偿器 | |
| junction current | 结电流 | |
| junction depth | 结深度 | |
| junction diode | 面结型二极管 | |
| junction field effect transistor | 面结型场效应晶体管 | |
| junction formation | 结形成 | |
| junction frequency (JF) | 聚合频率,聚合频率 | |
| junction gate fet | 结栅场效应晶体管 | |
| junction gate static induction transistor | 结栅静电感应晶体管 | |
| junction isolation | 结绝缘 | |
| junction laser | 结型激光器 | |
| junction line | 中继线 | |
| junction of thermocouple | 热电偶接合点 | |
| junction plate | 连接板 | |
| junction point | 接合点 | |
| junction pole | 连接杆 | |
| junction potential method | 接点电势法 | |
| junction rectifier | 结型整流 | |
| junction style of thermocouple | 热电偶的端的形式 | |
| junction transistor | 面结型晶体管 | |
| junction transposition | 接线换位 | |
| junction type zinc oxide varstor | 结型氧化锌电压敏电阻器 | |
| junction-transistor integrator | 结式晶体管积分器 | |
| junctional complex | 连接复合体,连接物 | |
| junctor | 联络线,连接机 | |
| juncture | 接合,连接 | |
| junior cave | 小屏蔽室 | |
| junior scram | 紧急降功率,非安全紧急停堆 | |
| junk | 废料 | |
| junk ring | 密封圈 | |
| juridical organ | 司法机关 | |
| jurisdiction | 权限,管辖权 | |
| jury pump | 备用泵 | |
| just price | 公平价格 | |
| just-noticeable difference | 最小可辨差异 | |
| justice of exchange | 交易公平 | |
| justification | 定位,正当性判断 | |
| justification of a practice | 实践的正当性 | |
| justify | 证明正确 | |
| justowriter | 带穿孔打字系统 | |
| jut | 凸出,伸出 | |
| jute | 黄麻 | |
| jute covering | 黄麻包皮 | |
| jute insulated cable | 黄麻绝缘电缆 | |
| jute serving | 黄麻包皮 |

