laser inside diameter measuring instrument,激光内径测量仪

laser interferometer,激光干涉仪

laser interferometry,激光干涉测量

laser length measuring instrument,激光式测长仪

laser level,激光水准仪

laser microspectral analyzer,激光显微光谱分析仪

laser orientation instrument,激光指向仪

laser outside diameter measuring instrument,激光外径测量仪

laser plummet,激光垂准仪

laser printer,激光印刷机

laser probe mass spectrometer,激光探针质谱计

laser scatterometer,激光散射计

laser sensor,激光传感器

laser spectrum radiator,激光光谱辐射计

laser tachometer,激光转速仪

laser theodolite,激光经纬仪

latent heat,潜热

lateral logger,侧向测井仪

lateral probe movement,左右扫查

lateral scan,左右扫查

lead capacitance,接线电容

lead compensation,超前补偿

lead inductance,接线电感

lead/lag module,超前/滞后组件

lead module,超前组件

lead network,超前网络

leading edge,前缘

leading peak,前伸峰

leak pressure,泄漏压力

leakage current screen,泄漏电流屏蔽

leakage magnetic field,漏磁场

leakage magnetic field inspection,漏磁探伤法

leakage magnetic flow detector,漏磁探伤仪

leakage resistance,漏电阻

least-squares line,最小二乘直线

least-squares linearity,最小二乘线性度

length,长度 length control device,定长装置

length of a scale division,标度分格间距；分格（度）长度

lengthy bellows,长波纹管

lens micrometer,透镜测微器

level,水准仪；水准器；水准泡；级；电平；物位

level recorder,电平记录仪

level transducer(sensor),物位传感器

leve-braked motor,杠杆式制动电动机

lever-type vibrograph,杠杆式测振仪

library,程序库

library searching,谱库检索

life,寿命

life of X-ray tube,X射线管寿命试验

lift of hydrofoil,水翼升力

lift-drag of towed vehicle,拖曳体升阻比

lift-off effect,提高效应

ligand chromatography,配位体色谱法

light button,光按钮

light digital logging instrument,轻便数字测井仪

lightning,闪电

limit alarm sensor,极限报警检测器

limit equivalent conductance,极限当量电导

limit frequency,极限频率

limit of detection,检测限

limit of intrinsic error,基本误差限

limit resolution,极限分辨率

limit switch,限位开关

limited breathing enclosure,限制通气外壳

limited current,极限电流

limiting availability,极限可用度

limiting control,极限控制

limiting effective wavelength,极限有效波长

limiting operationg condition,极限工作条件

limiting temperature,极限温度

limiting vacuum,极限真空度

limiting value for operation,工作极限值

limiting value for storage,贮存极限值

limiting value for transport,运输极限值

limits of error,误差（极）限

limits of operating error,工作误差根限

line,线路

line-at-time printer,行式印刷机[打印机]；一次一行印刷机

line-by-line scanning,面扫描

line coupler,线路耦合器

line focus,线焦点

line frame,线路帧

line pair,线对

line printer,行式打印机[印刷机]；一次一行印刷机

line protocol,线路协议

line scanning,线扫描

line sensitivity,线灵敏度

line strain,线应变

line to line resolution,线分辨力

line turnaround,线路换向

line voltage regulation,电源电压调整率

linear absorption coefticient,线性吸收系数

linear acceleration,线加速度

linear acceleration transducer[sensor],线加速度传感器

linear array,线阵

linear control system,线性控制系统

linear control system theory,线性控制系统理论

linear conversion,线性转换