aperiodic dampong,非周期阻尼;过阻尼
aperiodic vibration,非周期振动
aperture,光阑
aperture of pressure difference,压差光阑
aperture photographic method,针孔摄影法
aperture stop,孔径光栏
aperture time,空隙时间
apparatus for measuring d.c.magnetic characteristic with ballistic galvanometer, 冲击法直流磁特性测量装置
apparent temperature,表观温度
appearance potentical,出现电位
appearance potential spectrometer,出现电热谱仪
appearance potential spectrometer(APS),出现电热谱法
application layer(AL),应用层
application layer protocol specification,应用层协议规范
application layer service definition,应用室服务定义
application software,应用软件
approval,批准
approximate absolute temperature scale,近似绝对温标
aqueous vapour,水汽
arc suppressing varstor,消弧电压敏电阻器
arctic buoy,极地浮标
area effect,面积影响
area location,区域定位
area of cross section of the main air flow,主送风方向横截面积
argon-ion gun,氩离子枪
annular chamber,环室
argon ionization detector,氩离子化检测器
arithmetic logic unit(ALU),算术逻辑运算单元
arithmetic mean,算术平均值
arithmetic weighted mean,算术加权平均值
arithmetical mean deviation of the(foughness)profile,(粗糙度)轮廓的算术平均偏差
arm error,不等臂误差
armature,动铁芯
array,阵,阵列
array configuration,阵排列
arrester varistor,防雷用电压敏电阻器
articulated robot,关节型机器人
artificial defect,人工缺陷
artificial environment,人工环境
artificial field method instrument,人工电场法仪器
artificial intelligence,人工智能
artificial seawater,人工海水
ash fusion point determination meter,异步通信接口适配器
asynchronous input,异步输入
asynchronous transmission,异步传输
atmidometer,蒸发仪,蒸发表
atmometer,蒸发仪;蒸发表
atmoradiograph,天电强度计
atmosphere,气氛
atmospheric counter radiation,天气向下辐射
atmospheric electricity,大气电
atmospheric opacity,大气不透明度
atmospheric pressure,气压
atmospheric pressure altimeter,气压高度计
atmospheric pressure ionization(API),大气压电离
atmospherics,天电;远程雷电
atom force microscope,原子力显微镜
atomic absorption spectrometry,
原子吸收光谱法
atomic fluorescence spectrophotometer,原子荧光光度计
atomic fluorescence spectrometry,原子荧光光谱法
atomic mass unit,原子质量单位
atomic number correction,原子序数修正
atomin spectrum,原子光谱
atomic-absorption spectrophotometer,
原子吸收分光光度计
atomization,原子化
atomizer,原子化器
attenuation,衰减
attenuation coefficient,衰减系数
attenuation length,衰减长度
attenuator,衰减器
attitude,姿态
attitude transducer[sensor],姿态传感器
audio monitor,监听器
audio-frequency spectrometer,声频频谱仪
audit,审核
Auger electron energy spectrometer(AEES),俄歇电子能谱仪
Auger electron image,俄歇电子象
Auger electron spectrometer,俄歇电子能谱仪
Auger electron spectroscopy(AES),俄歇电子能谱法
aurora,极光
auto-compensation logging instrument,电子自动测井仪
auto-compound current transformer,自耦式混合绕组电流互感器
auto-polarization compensator,自动极化补偿器
autocorrelation function,自相关函数
automatic a.c.,d.c.B-H curve tracer,交、直流磁特性自动记录装置
automatic balancing machine,自动平衡机
automatic control,自动控制
automatic control souce of vacuum,真空自动控制电源
automatic control system,自动控制系统
automatic data processing,自动数据处理
automatic exposure device,自动曝光装置
automatic feeder for brine,盐水溶液自动补给器
automatic focus and stigmator,自动调焦和消象散装置
automatic level,自动安平水准仪
automatic levelling compensator,视轴安平补偿器
automatic/manual station;A/M station,自动/手动操作器
automatic programming,自动程度设计
automatic radio wind wane and anemometer,无线电自动风向风速仪
automatic railway weigh bridge,电子轨道衡
automatic scanning,自动扫查
automatic spring pipette,自动弹簧式吸液管
automatic testing machine,自动试验机
automatic titrator,自动滴定仪
automatic tracking,自动跟踪
automatic vertical index,竖直度盘指标补偿器
automatic weather station,自动气象站
automation,自动化
automaton,自动机
auxiliary attachment,辅件
auxiliary controller bus(ACB),辅助控制器总线
auxiliary crate controller,辅助机箱控制器
auxiliary devices,辅助装置
auxiliary equipment(of potentiometer),(电位差计的)辅助设备
auxiliary gas,辅助气体
auxiliary output signal,辅助输出信号
auxiliary storage,辅助存储器
auxiliary terminal,辅助端
auxiliary type gravimeter,助动型重力仪
availability,可用性
available time,可用时间
average,平均值
average availability,平均可用度
average nominal characteristic,平均名义特性
average sound level,平均声级
average value of contarmination,污染的平均值
average wind speed,平均风速
axial clearance,轴向间隙
axial current flow method,轴向通电法
axial load,轴向载荷
axial sensitivity,轴向灵敏度
axial vibration,轴向振动
axis of rotation,摆轴;旋转轴
axix of strain gauge,应变计[片]轴线