intensifying screen,增感屏
interacted system,互联系统；关联系统
interaction,互联；关联
interactive terminal,交互式终端
interchangeability,互换性
interchangeable accessory,可互换附件
interface,接口；界面
interface echo,界面反射波
interface message processor,接口通信处理机
interference error,干扰误差
interference filter,干扰[涉]滤光片
interior package,内包装
intermediate lens,中间镜
intermediate voltage capacitor(of a capacitor voltage transformer), （电容器式电压互感器的）中压电容器
intermediate voltage terminal (of a capacitor voltage transformer), 电容器式电压互感器的）中压端
intermittent d.c.noncapacitive arc,非电容间歇直流电弧
intermittent duty,断续工作制
intermittent spray,间断喷雾
internal burden(of a current transformer),（电流互感器的）内负载
internal-convection sensitive element,内对流敏感元件
internal disturbance,内扰
internal gear,定子齿轮
internal lead,内引线
internal lock signal,内锁信号
internal model principle,内模原理
internal reference electrode,内参比电极
internal reference sample,内参比试样
internal reflection element,内反射元件
internal reflection spectrometry,内反射光谱法
internal resistance,内阻
internal standard,内标物
internal standard line,内标线
internal standard method,内标法
internal stop,内挡块
internally piloted regulator,整体指挥器操作型自力式调节阀
International(Practical) Temperature Scale,国际（实用）温标
International Practical Temperature Scale-1968,(IPTS-68),1968年国际实用温标
international standard,国际标准（器）
International Temperature Scale-1990(ITS-90),1990年国际温标
internuclear double resonance,核间双共振（法）
interoperable system protocol(ISP0,可互操作系统协议
interpretive language,解释语言
interprogram communication,程序间通信
interrupt,中断
interrupt mask,中断屏蔽
interrupt priority,中断优先权
interrupt priority system,中断优先权系统
interrupt source,中断源
interval timer,间隔时钟
intracranial pressure transducer[sensor],颅内压传感器
intra-plant system,厂内系统
intrinsic astigmatism,固有象散
intrinsic error,基本[固有]误差
intrinsic safety barriter,本质安全栅
intrinsic viscosity,固有粘度
intrinsically safe circuit(Exi),本质安全电路(Exi)
invalid event,无效事件
invar levelling staff,因瓦水准标尺
inventory management system,库存管理系统
inverse heating rate curves,逆加热速率曲线
inverse system,可逆系统
investment decision,投资决策
inverting telescope,倒像望远镜
ion,离子
ion-activity meter,离子计
ion accelerating voltage,离子加速电压
ion beam thinner,离子减薄机
ion bombardment secondary electron image,离子轰击二次电子象
ion chromatography,离子色谱法
ion counter,离子计数器
ion cyclotron resonance mass spectrometer;ICR mass spectrometer, 离子回旋共振质谱计
ion detector,离子检测器
ion-exchange chromatography,离子排斥色谱法
ion kinetic energy spectra;IKE spectra,离子动能谱
ion lens,郭子透镜
ion mobility,离子淌度
ion neutralization,离子中和
ion neutralization spectrometer,离子中和谱仪
ion neutralizing spectroscopy(INS),离子中和谱法
ion optics,离子光学
ion pump,离子泵 ion repeller,离子排斥极
ion scattering spectrometer,离子散射谱仪
ion-scattering spectroscopy(ISS),离子散射谱法
ion-scattering spectrum,离子散射谱
ion-selective electrode analysis,离子选择电极分析（法）
ion-selective electrode,离子选择电极
ion-selective electrode gas transducer[sensor],离子选择电极（式）气体传感器
ion source,离子源
ion sputtering coator,离子溅射镀膜台
ion strength,离子强度
ion transducer[sensor],离子传感器
ion transmission efficiency,离子传输率
ionflow anemometer,离子流风速表
ionization by sputtering,溅射电离
ionization chamber,电离室
ionization efficiency curve,电离效率曲线
ionization lose spectroscopy(ILS),离化损失谱法
ionizing transducer[sensor],电离式传感器
ionizing voltage,电离电压
ionospheric recorder,电离层记录器
Iron/Copper-Nickel thermocouple,铁—铜镍热电偶
irradiance,辐（射）照（射）度
irradiation,辐照
irregularity,非直管性（段）
ISA 1932 nozzle,ISA 1932喷嘴
isentropic exponent,等熵指数
ISFET ion transducer[sensor],场效应管（式）离子传感器
isoabsorptive point,等吸收点
isobaric mass-change determination,等压质量变化测定
isobaric weight-change curve,等压重量变化曲线
isobaric weight-change determination,等压重量变化测定
isolated amplifier,隔离放大器
isolated analogue input,隔离的模拟输入
isolated junction,绝缘端
isolated junction type sheathed thermocouple,绝缘型铠装热电偶
isolated system,孤立系统
isolating valve,隔断阀
isolator,隔离器
isopotential point,等电位点
isothermal point,恒温式热量计
isothermal gas chromatography,等温层跟踪仪
isothermal weight-change curve,等温重量变化曲线
isothermal weight-change determination,等温重量变化测定
isotope dilution mass spectrometry,同位素稀释质谱法
isotope mass spectrometer,同位素质谱计
isotope peak,同位素峰
isotope ratio measurement,同位素丰度测定
item,项（目）
iteration chromatography,核对色谱法
ivory point,象牙针尖