optic fiber displacement meter,光纤式位移计
optic fiber position measuring instrument,光纤式位置测量仪
optic fiber pressure transducer,光纤压力传感器
optic fiber tachometer,光纤式转速表
optic fiber tachometric transducer,光纤式转速传感器
optical arm length,光臂长度
optical Doppler effect,光的多普勒效应
optical fiber,光导纤维
optical fiber chemical sensor,光纤化学传感器
optical fibre magnetometer,光纤磁强计
optical fiber sensor,光纤式传感器
optical(measurement)method,光测法
optical micrometer,光学测微器
optical plummet,垂准仪；光学对中器
optical pumping,magnetometer,光泵磁强计；光泵磁力仪
optical(quantity)transducer(sensor),光（学量）传感器
optical reading range,光学读数范围
optical spectrometer,光学光谱仪
optical system,光学系统
optical theodolite,光学经纬仪
optical vibrometer,光学测振仪
optical wedge micrometer,光楔测微器
optima estimation,最优估计
optimal control,最优控制
optimal control law,最优控制律
optimal control system,最优控制系统
optimal control theory,最优控制理论
optimal decision problem,最优决策问题
optimal solution,最优解
optimal strategy,最做出策略
optimality principle,最优性原理
optimization,（最）优化
optimization layer,优化层
optimization technique,最优化技术
optimum frequency,最佳频率
order,有序
order parameter,序参数
ordinary temperature thermistor,常温热敏电阻器
organic semiconductor gas transducer [sensor],有机半导体气体传感器
organic semiconductor humidity transduce [sensor],有机半导体湿度传感器
organic semiconductor thermistor,有机半导体热敏电阻器
orientation,定向
orientation control,定向控制
orifice,节流孔
orifice plate,孔板
orifice-and-plug flowmeter,锥塞式流量计
original system,原系统
originator,源发站
orthogonal distrortion,正交畸变
ortho-projector,正射投影仪
oscillating period,振荡周期
oscillator,振荡器
oscillograph,录（示）波器
oscillographic polarograph,示波极谱仪
oscilloscope,示波器
outboard rotor,外重心转子
outdoor location,户外场所
outer package,外包装
outlier,剔除值
output device,输出单元；输出设备
output equation,输出方程
output error,输出误差
output feedback,输出反馈
output fluctuation,输出波动
output force or torque stability,输出激振力或力矩的稳定性
output impedance,输出阻抗
output impedance of microphone,传声器输出阻抗
output information,输出信息
output matrix,输出矩阵
output noise,输出噪声
output prediction method,输出预估法
output shaft rotation clearance,输出轴间隙角
output shaft rotation range,输出轴转角范围
output shaft torque,输出轴转矩
output signal,输出信号
output signal "one" level,输出信号“1”电平
output signal "zero" level,输出信号“0”电平
output state,输出状态
output stem travel clearance,输出杆间隙位移
output system,输出系统
output unit,输出设备
output variable,输出变量
output vector,输出向量；输出矢量
oval gear flowmeter,椭圆齿轮流量计
oval wheel flowmeter,椭圆齿轮流量计
oven temperature,箱温
over-current protection,过电流保护
over-voltage protection,过电压保护
overall design,总体设计
overdampin,非周期阻尼；过阻尼
overflow,溢出
overflow indication,溢出指示
overlapping averages,滑动平均
overlapping event,交迭事件
overload,过载；超负荷
overload flow-rate,过载流量
over-load meter,过载仪
overpressure characteristic,超压特性
overpressure failure,超压破裂
overrange,过范围
overrange limit,过范围限
overshoot,过冲；超调量；过振比
overview panel,总貌画面
overvoltage protection varistor,过电压保护电压敏电阻器
oxide thermistor,氧化物热敏电阻器
oxygen bomb,氧弹
oxygen bomb calorimeter,氧弹式热量计
oxygen (pressure)gauge,氧压力表
oxygen regulator,氧气减压器
ozone analyzer,臭氧分析仪
ozone sonde,臭氧探空仪
ozone spectrophotometer,臭氧分光光度仪