u bendu 形管
u boltu 形螺栓
u iron槽钢
u piece双肘管
u pipeu形管
u tubeu 形管
u tube manometeru 形压力计
uecm超声电解加工
uedm超声电火花加工
ultimate analysis元素分析
ultimate load极限负荷
ultimate load design极限载荷设计
ultimate pressure极限压力
ultimate strength极限强度
ultimate stress极限应力
ultimate vacuum极限真空度
ultracentrifuge超离心机
ultrahigh pressure超高压
ultrahigh speed machining超高速机械加工
ultrahigh strength steel超高强度钢
ultrahigh vacuum超高真空
ultralow electrode wear machining超低损耗加工
ultramicroscope超高倍显微镜
ultraprecision machining超精密加工
ultrasoinc lapping超声研磨
ultrasonic atomizer超声雾化器
ultrasonic cleaning超声波清洗
ultrasonic drilling超声钻法
ultrasonic drilling machine超声波钻床
ultrasonic edm超声电火花加工
ultrasonic electro discharge machining超声电火花加工
ultrasonic electrochemical machining超声电解加工
ultrasonic flaw detector超声波探伤仪
ultrasonic flowmeter超声波量计
ultrasonic generator超声波振荡器超声波发生器
ultrasonic inspection超声波探伤法
ultrasonic machine超声波加工机
ultrasonic machining超声波加工
ultrasonic metal forming超声塑性加工
ultrasonic microscope超声波显微镜
ultrasonic perforating machine超声波钻床
ultrasonic perforation超声钻法
ultrasonic slicing machine超声切片机床
ultrasonic soldering超声波针焊
ultrasonic testing超声波探伤法
ultrasonic thickness gage超声波测厚仪
ultrasonic vibration cutting超声振动切削
ultrasonic wave超声波
ultrasonic welding超声波焊接
ultraviolet radiation紫外线辐射
ultraviolet rays紫外线
unattended operation无人值班的运行
unbalance不平衡
unbalance indicator不均衡指示器
unbalance moment不平衡力矩
unbalance tolerance容许不平衡量
unbalanced mass不均衡质量
uncoiler展卷机
undamped oscillation非衰减振荡
undamped vibration非衰减振荡
undercarriage起落架
undercooling过冷
undercutting根切
underfeed furnace下部供燃料炉
underframe底架
underground gasification地下气化
underground railway地下铁道
underground water地下水
underload欠载
undershot wheel下射水轮
undersize筛下产品
undervoltage relay低电压继电器
underwater cutting水下切割
underwater robot水中机扑;水下机扑
underwater welding水下焊接
undulatory motion波动
unequal angle不等边角钢
unfinished bolt毛螺栓
unhooking摘钩
uniaxial stress单向应力
uniform acceleration等加速度
uniform circular motion等速圆周运动
uniform distribution均匀分布
uniform flow均匀流
uniform load均匀负荷
uniform motion等速运动
uniform movement等速运动
uniform pressure均匀压力
uniform scale均匀标度
uniform velocity等速度
uniformity均匀性
uniformly accelerated motion等加速度运动
uniformly distributed load等分布荷重
uniformly retarded motion匀减速运动
union nut联管螺帽
unit单位
unit bore system基孔制
unit built machine tool组合机床
unit cell单位晶格
unit cooler冷却机组
unit of measurement测量单位
unit of tolerance公差单位
unit shaft system基轴制
unit type head动力头
unit vector单位矢量
universal chuck自动定心卡盘
universal dividing head万能分度头
universal drilling machine万能钻床
universal gas constant通用气体常数
universal gravitation万有引力
universal grinder万能磨床
universal industrial robot万能工业机扑
universal joint万向接头
universal joint drive万向节传动
universal joint fork万向节叉
universal joint shaft万向节轴
universal joint yoke万向节叉
universal machine tool通用机床
universal measuring microscope万能测定显微镜
universal miller万能铣床
universal milling machine万能铣床
universal screw wrench活动]扳手
universal testing machine万能材料试验机
universal tool and cutter grinder万能工具磨床
unloaded weight空车重量
unloader卸荷阀
unloader valve卸荷阀
unloading卸荷;卸载
unloading valve卸荷阀
unmanned aircraft无人驾驶飞机
unmanned factory无人工厂
unmanned manufacture无人生产过程
unmanned operation无人值班的运行
unmanned warehouse无人仓库
unrivet起铆钉
unsaturated compound不饱和化合物
unsaturated vapor末饱和蒸汽
unscrew松螺丝
unscrewing拧下
unsolder拆开焊缝
unsprung weight弹簧下重量
unstable equilibrium不稳定平衡
unstable state不稳定状态
unsteady flow非定常流不稳定流
unsteady heat conduction不稳定导热
up milling逆铣
up stroke上升冲程
upcurrent上升气流
updraft上升气流
upflow上升气流
upper dead center上死点
upper deviation上偏差
upper die上模
upper limit上限
upper slide上滑板
upright drilling machine立式钻床
upset butt welding电阻对焊接
upset welding电阻对焊接
upsetter锻头机
upsetting镦粗
upsetting machine锻头机
upsetting test镦粗试验
uptake flue上升烟道
uranium铀
uranium enrichment铀浓缩
uranium fuel铀燃料
uranium hexafluoride六氟化铀
uranium oxide氧化铀
uranium reactor铀反应堆
urban bus市区公共汽车
urea resin尿素尸
urgency stop紧急停止
uric acid尿酸
used air废气
used car旧汽车
used lubricating oil废油
used sand旧砂
useful energy有效能
useful horsepower有效功率
useful load有效负载
useful work有效功
user program用户程序
user's manual使用说瞄
usf超声塑性加工
usl超声研磨
utility aircraft通用飞机
utility boiler动力锅炉
utilization coefficient利用率
utilization factor利用率
uvc超声振动切削
v belt三角皮带
v belt drive三角皮带传动
v blockv 形铁
v block brake楔形闸
v enginev 形发动机
v groove brake楔形闸
v guidev 形导轨
v pulley三角皮带轮
v secm立式电解成形机
v tail蝶形尾部
v thread三角螺纹
v type enginev型发动机
v type tailv 形尾翼
vaccum meter真空计
vacuum真空
vacuum annealing真空退火
vacuum arc furnace真空电弧炉
vacuum bottle热水瓶
vacuum brake真空制动器
vacuum capper真空封瓶器
vacuum capping machine真空封瓶器
vacuum casting真空铸造
vacuum cement真空封泥
vacuum chamber真空室
vacuum chuck真空卡盘
vacuum cleaner吸尘器
vacuum degassing真空除气
vacuum distillation真空蒸馏
vacuum drier真空干燥器
vacuum drying真空干燥
vacuum evaporation真空蒸发;真空涂膜
vacuum evaporator直空蒸发器;真空涂膜器
vacuum filler真空填充器
vacuum filter真空过滤机
vacuum filtration真空过滤
vacuum forming真空成形
vacuum freeze drying真空冷冻干燥
vacuum freezing真空冷冻
vacuum fusion真空熔化
vacuum gauge真空计
vacuum grease真空润滑脂
vacuum gripper真空钳子
vacuum hose真空软管
vacuum ignition advancer真空点火提前装置
vacuum impregnation真空浸渍
vacuum indicator真空计
vacuum induction furnace真空感应炉
vacuum lamp真空灯
vacuum lifting device真空提升装置
vacuum measurement真空测量
vacuum measuring instrument真空计
vacuum melting真空熔化
vacuum metallizing真空镀敷
vacuum metallurgy真空冶金
vacuum molding真空成形
vacuum oil真空油
vacuum packaging machine真空包装器
vacuum pump真空泵
vacuum refrigerating machine真空冷冻机
vacuum reservoir真空罐
vacuum seal真空密封
vacuum seamer罐头折边封盖机
vacuum sintering真空烧结
vacuum system真空系统
vacuum tank真空罐
vacuum technique真空技术
vacuum test真空试验
vacuum tight真空密封的
vacuum trap真空阱
vacuum tube真空管
vacuum tube rectifier真空整流
vacuum tube voltmeter真空管电压表
vacuum valve真空阀
value值
valve阀
valve arm阀杆
valve body阀体
valve bonnet阀盖
valve box阀箱
valve case阀箱
valve casing阀箱
valve chest阀室
valve cock阀栓
valve cover阀盖
valve diagram阀动图
valve follower气门挺杆
valve gear阀动装置
valve grinding磨阀
valve guard阀档板
valve guide阀导承
valve head气门头
valve in head engine顶阀式发动机
valve lap阀重叠
valve lever阀杆
valve lift阀升程
valve lift curve阀升程图
valve lift diagram阀升程图
valve lifter气门挺杆
valve lifter guide阀挺杆导承
valve mechanism阀动装置
valve needle阀针
valve overlap阀重叠
valve plate阀板
valve port阀口
valve position阀位
valve push rod推阀杆
valve rocker arm气阀摇杆
valve rocker arm shaft阀摇臂轴
valve rocker bracket阀摇臂轴托架
valve rocker pedestal阀摇臂轴托架
valve rocker shaft阀摇臂轴
valve rod阀杆
valve seat阀座
valve seating磨阀
valve setting阀蝶
valve spring阀弹簧
valve stem阀杆
valve stroke阀升程
valve tappet气门挺杆
valve tappet clearance气门挺杆间隙
valve tappet guide阀挺杆导承
valve timing阀定时
valve timing gear阀定时装置
valveless engine无气门式发动机
van箱式货车
van der waals' equation范德瓦耳斯方程
vanadium钒
vanadium steel钒钢
vane叶片
vane anemometer翼式风速计
vane compressor叶片式压缩机
vane flowmeter转子式量表
vane motor叶轮式油压马达
vane pump叶轮泵
vane wheel叶轮
vaned diffuser叶片式扩散器
vaneless diffuser无叶片式扩散器无导连的扩压器
vapoize蒸发
vapor蒸汽
vapor cycle蒸气循环
vapor lock蒸汽汽塞
vapor pressure蒸汽压力
vapor pump蒸汽喷射泵
vaporimeter蒸气压力表
vaporization蒸发
vaporizer蒸发器
vapour蒸汽
variable变数
variable acceleration可变加速度
variable capacitor可变电容器
variable condenser可变电容器
variable delivery pump可变容积泵
variable density wind tunnel变密
