decentralized model,分散模型

decentralized robust control,分散鲁棒控制

decentralized stochastic control,分散随机控制

decision analysis,决策分析

decision model,决策模

decision program,决策程序

decision space,决策空间

decision support system,决策支持系统

decision table,判定表

decision theory，决策（理）论

decision tree,决策树

decrement ratio,减幅比

deep sea instrument capsule,深海仪器舱

defect,缺陷

defining fixed point,定义固定点

definitionm,清晰度

deflecting torque,偏转力矩

deflection,挠度

deflection method,偏位法

deflection period,摆动周期

defocus contrast,离焦衬度

dehumidification,除湿

dehumidifier,除湿器

delay distance,滞后距离

delay time,滞后时间

delayed echo,迟到反射波

delayed telemetry,延时遥测

delimiter bit,定界位

delimiter byte,定界定节

delta-T,时间差；时差

delta-T timing unit,时差计时单元

demagnetization,退磁

demagnetizer,退磁机；退磁装置

demagnetizing coil,消磁线圈

demand,请求

demand handling,请求处理

demand message,请求报文

democratic system,民主系统

demodulation,解调

demodulator,解调器

densitometer,密度计；黑度计

density,密度

density correction,密度修正

density logger,密度测井仪

density meter(of ionizing radiaiton),（电离辐射）密度计

density of heat flow,热流密度

density of snow,积雪密度

density(photographic),（照相的）黑度

density transducer[sensor],密度传感器

depressor,沉降器

depth bellows,深波纹管

depth controller,深度控制器

depth of field,景深

depth of focus,焦深

depth of penetration,穿透深度

depth of snow,雪深

depth scan,前后扫查

depth sounding,测深

derivative absorption spectrum,导数吸收光谱

derivative action;D-action,微分作用；D-作用

derivative action coefficient,微分作用系数

derivative action gain,微分作用增益

derivative action time,微分作用时间

derivative differential thermal analysis,导数差示热分析

derivative differential thermal curve,导数差示热曲线

derivative dilatometry,导数膨胀法

derivative feedback,微分反馈

derivative thermogravimetric curve,导数热重曲线

derivative thermogravimetry,导数热重法

derivative unit,微分器

derived unit(of measurement),导出（测量）单位

describing function,描述函数

design automation,设计自动化

design constant,设计常数

design distance,设计距离

design of simulation dxperiment,仿真实验设计

designed immersion depth,设计浸入深度

desired value,预期值

desorption chemical ionization(DCI),解吸化学电离

destination,目的站

detectability,可检测性；能检测性；检测能力

detectability(chromatographic),（色谱）检测限

detecting instrument,检出器；检测元件；检波器

developer,显示剂

development tank,展开罐

deviation,偏差

deviation alarm sensor,偏差报警检测器

deviation from lonearity,偏离线性度

deviation of the e.m.f.(with respect to the certified value), 电动势的偏差值（相对于检定值)

device,装置

Device Net，Device Net 总线；装置网

dew cell,露池

dew-point,露点

dew-point hygrograph,露点计

dew point hygrometer,露点湿度计；露点湿度表

dew point temperature,露点温度

dew point transducer[sensor],露点传感器

dewgauge,露量表；露量器