a. c. bridge,交流電橋

a. c. current calibrator,交流電流校准器

a. c. current distortion,交流電流失真

a. c. induced polarization instrument,交流激電儀

a. c. potentiometer,交流電位差計

a. c. resistance box,交流電阻箱

a. c. standard resistor,交流標准電阻器

a. c. voltage distortion,交流電壓校准器

a. c. voltage distortion,交流電壓失真

Abbe comparator,阿貝比長儀

aberration,象差

ability of anti prereduced component,抗先還原物質能力

ablative thickness transducer [sensor],燒蝕厚度傳感器

abrasion testing machine,磨損試驗机

absolute calibration,絕對法校准

absolute coil,獨立線圈

absolute error,絕對誤差

(absolute)error of measurement,測量的（絕對）誤差

absolute gravimeter,絕對重力儀

absolute gravity survey,絕對重力測量

absolute humidity,絕對濕度

absolute method,絕對法

absolute moisture of the soil,土壤（絕對）濕度

absolute pressure,絕對壓力

absolute(pressure transducer,絕對壓力表

absolute pressure transducer[sensor],絕對壓力傳感器

absolute read-out,單獨讀出

absolute resolution,絕對分辨率

absolute salinity,絕對鹽度

absolute stability,絕對穩定性

absolute stability of a linear system,線性系統的絕對穩定性

absolute static pressure of the fluid,流体絕對靜壓

absolute temperature scale,絕對溫標

absorbance,吸光度

absorbed current image,吸收電流象

absorptance,吸收比

absorptiometer,吸收光度計

absorption cell,吸收池

absorption coefficient,吸收系數

absorption correction,吸收修正

absorption edges,吸收邊

absorption factor,吸收系數

absorption hygrometer,吸收溫度表

absorption spectrum,吸收光譜

absorption X-ray spectrometry,吸收X射線譜法

absorptivity,吸收率

absorptivity of an absorbing,吸引材料的吸收率

abstract system,抽象系統

abundance sensityivity,丰度靈敏度

AC-ACLVDT displacement transducer,交流差動變壓器式位移傳感器

accelerated test,加速試驗

accelerationg voltage,加速電壓

acceleration,加速度

acceleration error coefficient,加速度誤差系數

acceleration of gravity,重力加速度

acceleration simulator,加速度仿真器

acceleration transducer[sensor],加速度傳感器

accelerometer,加速度計

acceptance of the mass filter,濾質器的接收容限

acceptance test,驗[交]收檢驗

access,存取 access time,存取時間

accessibility,可及性

accessories of testing machine,試驗机附件

accessory(for a measuring instrument),（測量儀表的）附件

accessory hardware,附屬硬件

accessory of limited interchangeability,有限互換附件

accumulated error,積累誤差

accumulated time difference,累積時差

accumulative raingauge,累積雨量器

accumulator,累加器

accuracy,精[准]确度

accuracy class,精[准]确度等級

accuracy limit factor(of a protective current transformer）, （保護用電流互感器的）精确度极限因數

accuracy of measurement,測量精[准]确度

accuracy of the wavelength,波長精确度

accuracy rating,精确度限

acetylene(pressure)gauge,乙炔壓力表

acetylene regulator,乙炔減壓器

acoustic amplitude logger,聲波幅度測井儀

acoustic beacon,水聲信標

acoustic current meter,聲學海流計

acoustic element,聲學元件

acoustic emission,聲發射

acoustic emission amplitude,聲發射振幅

acoustic emission analysis system,聲發射分析系統

acoustic emission detection system,聲發射檢測系統

acoustic emission detector,聲發射檢測儀

acoustic emission energy,聲發射能量

acoustic emission event,聲發射事件

acoustic emission preamplifier,聲發射前置放大器

acoustic emission pulser,聲發射脈衝發生器

acoustic emission rate,聲發射率

acoustic emission signal processor[conditioner],聲發射信號處理器

acoustic emission rate,聲發射信號

acoustic emission source location and analysis system,聲發射源定位及分析系統

acoustic emission source location system,聲發射源定位系統

acoustic emission source,聲發射源