Q-percentile life,可靠寿命

quad array,方阵

quadrant-edge orifice plate,1/4圆周边缘孔板

quadrant electrometer,象限静电计

quadrupole field,四极场

quadrupole ion trap,四极离子阱

quadrupole mass filter,四极滤质器

quadrupole mass spectrometer,四极质谱计

quadrupole probe,四极探头

quadrupole residual gas analyzer,四极残余气体分析器

quadrupole rods,四极杆

qualification,鉴定

qualification standard,鉴定标准

qualification test,鉴定试验

qualitative analysis,定性分析

quantitative differential thermal analysis (QDTA),定量差示热分析

qualitative physical model,定性物理模型

quality,质量

quality assurance,质量保证

quality control (QC),质量控制

quality inspection,质量检验

quality management,质量管理

quality supervision,质量监督

quantitative analysis,定量分析

quantitative differential thermal analysis,定量差热分析

quantitative differential thermal analyzer,定量差热（分析）仪

quantity of heat,热量

quantity of illumination,光照量

quantity of radiant energy,辐射能量

quantity of radiation,幅射能量

quantity to be measured,被测量

quantization,量化

quantization error,量化误差

quantized error,量化误差

quantized noise,量化噪声

quantized signal,量化信号

quartet,四重布置；四重检测

quarter circle orifice plate,1/4圆孔板

quartz-Bourdon tube (pressure)gauge,石英弹簧管压力计

quartz crystal unit humidity transducer[sensor]晶体振子式湿度传感器

quartz module,石英组件

quartz spring gravimeter,石英弹簧重力仪

quartz thermometer,石英温度计；石英温度表

quasi-equilibrium theory,准平衡理论

quasi-molecular ion,准分子离子

quasi-periodic vibration,准周期振动

quasi-rigid rotor,准刚性转子

quasi-sinusoidal quantity,准正弦量

quasi-static unbalance,准静不平衡

quasilinear chareacteristics,准线性特性

quenching,阻塞

question and answer mode,问答式

queuing theory,排队论

quick thermophysical property measuring apparatus,热物性快速测定仪

quintet,五重布置；五重检测