1、Japanese wood oil &Jaray car & 贾雷型汽车Jeantaud steering & 简托德转向Jeep dolly & 带牵引座的牵引台车Jena glass & 耶拿玻璃（一种抗热，抗震玻璃）Jensens inequality & 约翰逊不等式Jersey fireclay brick & 杰尔西耐火砖（美国硅质耐火材料）Jersey stone & 杰尔西石（一种瓷石）Johnson gauge block & 约翰逊规块块规，量规Johnson noise & 约翰逊噪声，热噪声Johnsons bronze & 约翰逊青铜（一种轴承合金，Cu 90，Zn
2、9.5，Sn O.5）Joint Photographic Expert Group & 联合图像专家组JPEGJominy curve & 顶端淬火曲线Jominy test & 顶端淬火试验（测试淬透性）Jordan canonical form & 约尔丹标准型Jordan canonical matrix & 约尔丹标准形矩阵Jordan decomposition & 约尔丹分解Jordan form & 约尔丹（形）式Jordan sunshine recorder & 暗筒日照计，乔唐日照计Jorminy distance & 顶端淬火距离Josephson effect & 约
3、瑟夫森效应Josephson effect device & 约瑟夫森效应器件Josephson tunnel effect & 约瑟夫森隧道效应Josephson tunneling & 约瑟夫逊隧道效应Joule & 焦耳Joule effect & 焦耳效应Joule equivalent & 焦耳当量Joule heat & 焦耳热Just-In-Time & 适时制JITend-quench test &jack & 千斤顶起重机传导装置插口，塞孔，插座jack hammer drill & 手持式风钻jack lamp & 安全灯jack rabbit start & 滑转起步ja
4、ck switch & 插座开关jack-up & 举起jacket & 套，护套保护层（屯缆）水色布（胶管）被覆，外壳jacket heating & 夹套加热jacketing & 套式加热套式冷却jacking &jacking bracket & 顶车点jacking point &jacking stress & 张拉控制应力，张拉应力jackknife & 折叠现象jackmanizing & 深渗碳处理，深层渗碳jackscrew & 螺旋千斤顶jackshaft & 转轴 套轴jacquard & 提花机jam & 压紧抑制，阻塞停止，咬住，卡住，挤位干扰堵塞，故障jam nu
5、t & 保险螺母，防松螺母，锁紧螺母，安全螺母，锁定螺母jam switch & 门控灯开关jam to signal & 噪声信号比jam weld & 对头焊，塞焊jamb switch &jammer & 干扰机（雷达的）jammer adapter & 干扰附加器jamming & 人为干扰jamming transmitter & 干扰发射机jamproof & 抗干扰的jar & 瓶，电瓶缸震动，冲击jar mill & 罐磨机，小球磨jar ramming machine & 震实造型机jargons & 黄锆石jarlite & 黄钾铁矾jarring & 震动jarring
6、machine & 冲击机，震动机jaw & 爪虎钳，钳口滑块，凸轮销，键jaw clutch & 爪形离合器，颚式离合器jaw crusher & 颚式破碎机jaw of spanner & 扳手钳口jaw of the vice & 虎钳口jaw positive-contact coupling & 牙嵌式联轴器jaw vice & 虎钳jeep & 吉普车，越野汽车jel & 凝胶jell & 使凝固，固结定形胶囊jerk & 急拉，急推急扭，急撞急跳突条跳动，突振冲击跃度jerk diagram & 跃度曲线，跃度jerk pump & 柴油机喷油泵jerk sensor & 加速度
7、传感器jerk transducer &jerking table & 振摇台jet & 喷口，喷嘴喷注，喷射，喷流，射流喷射器喷气发动机jet aeroplane & 喷气飞机jet aircrafts & 喷气式飞机jet alloy & 火箭合金jet amplifier & 射流放大器jet bit & 喷射式钻头jet blower & 喷气鼓风机，喷射送风机jet bomber & 喷气式轰炸机jet burner & 喷射烧嘴，喷射火口jet coal & 长焰煤jet compressor & 喷射压气机jet condenser & 喷射凝汽机jet cutting shea
8、rer & 高压射流采煤机jet drier & 喷气式干燥机jet drilling & 喷射钻jet dryer & 喷射干燥器jet dyeing machine & 喷射染色机jet dynamics & 射流动力学jet electro-plating & 喷射电镀jet engine & 喷气发动机jet engine thrust & 喷气发动机推力jet enriching valve & 加速阀量孔jet etch & 喷腐蚀jet flow & 射流流动jet fuel & 喷气式发动机燃料jet gas turbine & 喷气式燃气轮机jet hardening & 喷
9、射淬火，喷水淬硬法jet ignition system & 喷射点火系统jet impact mill & 喷射冲击式磨机jet lift dredger & 喷射式挖泥船jet loom & 喷射织机jet lubrication & 喷射润滑jet mill & 气流磨碎机，喷射磨碎机jet motor & 喷气发动机，火箭发动机jet mould & 喷射塑模jet moulding & 喷射模塑jet noise & 喷流噪声，空气动力噪声jet nozzle & 喷射口，喷嘴，尾喷管，喷射管jet orifice separator & 喷嘴分离器jet particle & 喷射
10、粒子jet plating & 喷镀jet propelled aeroplane &jet propelled carriage & 喷气推进牵引车jet propelled carrier & 喷气拖车，喷气式运载工具jet propeller & 喷气推进器jet propulsion engine & 喷气推进发动器jet propulsion fuel & 喷气发动机燃料jet propulsion laboratory & 喷气推进实验室jet quenching & 喷射淬火，喷射淬硬法jet recorder & 喷射式记录仪jet starter & 喷气启动机jet str
11、eam & 喷流，喷管流动jet swelling effect & 射流膨胀效应，喷口膨胀效应jet thrust & 喷气推力jet transition point & 射流转变点jet tray & 喷射板jet vane & 燃气舵jet-assisted-takeoff engine & 起飞助推器jet-engine compressor & 喷气发动机（的）压气机jet-flame mill & 火焰钻机jet-piece machine & 热力穿孔机jetting & 喷流jettisonable cockpit & 弹射座舱jib & 挺杆，臂，吊臂，臂架，吊杆jib c
12、rane & 臂架起重机，悬臂起重机jib hoist & 臂式起重机jib-type ditcher & 转臂式挖沟机jib-type loader & 转臂式装载机jig & 夹具，夹紧钻模样板开幅卷染机jig and fixture & 机床夹具jig and welding fixture & 焊接胎夹具jig borer & 坐标镗床jig boring machine & 坐标镗床，座标镗床，冶具搪孔机jig bush & 钻套jig dyeing machine & 卷染机jig grinder & 坐标磨床，jig grinding machine & 坐标磨床，冶具磨床jig
13、 saw & 线锯jig welding & 接触焊器械焊接，模焊接jigger & 辘轳车，卷染机jiggering wheel & 拉坯盘车，辘轳车jigs & 钻模jitter & 图像跳动jittered pulse recurrence frequency & 跳动的脉冲重复频率job & 作业job control block & 作业控制块job control language & 作业控制语言job control macro-order & 作业控制宏指令job control program & 作业控制程序job control statement & 作业控制语句jo
14、b flow chart & 作业流程图job library & 作业库job lot production & 单件生产job management & 作业管理job processing control program & 作业处理，控制程序job shop task type production & 车间任务型生产job stream & 作业流job-lot control & 分批控制job-oriented terminal & 面向作业的终端job-shop automation & 车间自动化job-work &jockey & 导轮膜，薄膜，振动膜连接装置jockey
15、pot & 活动坩埚jockey pulley & 导轮，托轮张紧轮，支持轮jockey roller & 支持轮jockey wheel & 导轮，支持轮（皮带或链条的）jog & 割阶粗糙面，凹凸部慢进刀jog density & 割阶密度jogged dislocation & 割阶位错jogged screw dislocation & 割阶螺型位错jogging & 冲动状态（电动机反复启动的状态）产生割阶，割阶的（材料）joggle & 榫接，啮合，定缝销钉joggled butt joint & 啮合对接joggled lap joint & 啮合搭接joggling & 摇动加
16、工joggling die & 镦粗模jogs on dislocation & 位错上割阶join & 接合，接连接合处，接缝连接，并集，合并join by fusion & 熔接，熔焊join operation & 联合运算joining & 连接，接合，接头joining-up differentially & 差接joining-up in parallel & 并接joining-up in series & 串接joint & 接合，连接关节，联轴节结点，接头接缝，焊接节点，结点，节理连接器joint access & 连接入口joint action & 接合作用joint b
17、ar & 鱼尾板joint binding tape & 接缝黏结纸带joint buildup sequence & 焊道熔敷顺序joint cutter & 锯缝机joint displacement & 节点位移joint distribution & 联合分布joint distribution function & 联合分布函数joint ergodic random process & 联合遍历随机过程joint estimates & 联合估计joint gate & 分型面浇口joint glue & 胶接胶，接合胶，装配胶joint line & 结合线joint pin &
18、 连接销joint point & 连接点joint preparation & 接头制备备料joint probability & 联合概率joint probability density & 联合概率密度joint probability function & 联合概率函数joint process & 联产过程joint product casting & 联产品成本计算joint products & 联产品joint random variable & 联合随机变数joint runner & 填缝浇口joint sawer &joint seal & 密接，封缝joint sta
19、tionary random process & 联合平稳随机过程joint trunk exchange & 连接长途电话局joint weld & 焊接接头，焊缝joint-welding sequence & 接头焊接顺序（指多层焊时焊层或焊道的焊接次序）jointed manipulator & 关节型操作器jointer & 联结件电缆焊接工jointing & 填料接合，连接，接缝，焊接垫片jointless structure & 无缝结构jointless tracks & 无缝线路轨道joist & 工字钢搁栅托梁joist shears & 型钢剪切机joist steel
20、 & 梁钢jolleying & 辘轳成型，旋压成形jolt & 震摇，震实jolt moulding machine & 震动造型机，震实制型机jolt rock-over pattern draw machine & 翻台震实式造型机jolt roll-over draw machine & 翻箱震实造型机jolt squeeze & 震压jolt squeeze moulding machine & 震压造型机jolt squeeze turnover pattern draw machine & 回转震压造型机jolt table & 震动台jolt toughness & 震击韧性j
21、olt-packing & 震动填料jolt-ram turnover pattern draw machine & 旋转起模震实造型机jolt-ramming machine & 震动捣打机jolter & 震实制型机jolting mechanism & 震击机构jounce & 动行程journal & 数据通信系统应用记录 轴颈journal axis & 轴颈中心线journal bearing & 轴颈轴承journal box & 轴（颈）箱，轴颈轴承journal brass & 轴颈铜衬journal bronze & 轴颈青铜，减摩青铜journal centre & 轴颈
22、中心journal friction & 轴颈摩擦joy stick & 操纵杆joystick control &judder & 抖动离合器颤振juggernaut & 重型商用汽车jump & 跳变，跃迁，转移jump address & 转移地址jump address field & 转移地址字段jump coupling & 万向接头jump face & 接合面，连接面jump frequency & 跳变频率，跃迁频率jump function & 跳跃函数，跃变函数阶跃波形jump instruction & 跳转指令，转移指令jump instruction operand
23、 & 转移指令操作数jump joint & 对接jump lead & 跳线跨接jump phenomenon & 跳跃现像jump routine & 跳转程序jump start & 跳线跨接起动jump test & 锻粗试验，顶锻试验jump weld tube & 对缝焊管jumper cable &jumping trace routine & 转移跟踪程序jumping-up & 镦粗junction & 接头结合连接（点）结焊缝，焊点junction battery & 结电池junction box & 接线盒，套管联轴器junction breakdown & 结击穿ju
24、nction capacitance & 结电容junction capacitor & 结电容器junction circuit & 连结电路junction class & 端的类型junction class of thermocouple & 热电偶的端的类型junction current & 连接电流，中继电流，结电流junction depth & 结深junction diode & 面结型二极管junction electroluminescence & （半导体）结场致发光junction factor & 结的因子junction isolation & 结绝缘junct
25、ion laser & 结型激光器junction luminescent device & 结构发光器件junction perfection factor & 结的完美因子junction phenomena & 结现像junction photodiode & 结型光电二极管junction phototransistor & 结型光敏晶体管junction point & 联结点junction pole & 分线杆junction station & 汇结站junction style & 端的形式junction style of thermocouple & 热电偶的端的形式junction temperature & 结温junction transistor & 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 voltage & 结电压junction-gate field-effe
