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| deviation of control | 调节偏差 | |
| deviation phase angle | 偏差相角 | |
| deviation prism | 偏向棱镜 | |
| deviation ratio | 偏移系数 | |
| deviation standard | 偏差标准 | |
| deviation system | 偏转系统 | |
| deviation value | 偏差量 | |
| device | 器件,装置,元件,设备,器具,仪器,方法 | |
| device for telemetering | 遥测设备 | |
| device independence | 与设备无关性 | |
| 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 | |
| dew-point | 同上 | |
| dewar flask | 杜瓦真空瓶 | |
| dewatering | 脱水,排水 | |
| dewgauge | 露量表,露量器 | |
| dfet | 耗尽型场效应晶体管 | |
| di water facilities | 脱离子水用设备 | |
| diac | 二端交联关元件 | |
| diagnostic facilities | 诊断设备 | |
| diagnostic function | 诊断功能 | |
| diagnostic holography | 诊断全息照相术 | |
| diagnostic model | 诊断模型 | |
| diagnostic program | 诊断程序 | |
| diagnostic standard of silicosis | 矽肺诊断标准 | |
| diagnostics | 诊断技术 | |
| diagonal | 对角线 | |
| diagonal beam | 斜束 | |
| diagonal bracing | 对角支撑 | |
| diagonal conducting wall generator | 斜导电壁发电机 | |
| diagonal flow turbine | 斜流涡轮机 | |
| diagonal line | 对角线 | |
| diagonal matrix | 对角矩阵 | |
| diagonal-flow generator | 斜流通风式发电机 | |
| diagram | 线图,图,图表,曲线,图解,用图表示 | |
| diagram of connections | 接线图 | |
| diagram of heat flow | 热流图 | |
| diagram of terminal connections | 端子接线图 | |
| diagrams | 图名 | |
| dial | 刻度盘,标度盘 | |
| dial exchange | 自动交换区 | |
| dial line | 交换线路 | |
| dial pulsing | 拔号脉冲 | |
| dial signal | 拔号信号 | |
| dial switch | 拨号盘式开关 | |
| dial telephone system | 自动电话系统 | |
| dial thermometer | 度盘式温度计 | |
| dial tone | 拨号音 | |
| dial up line | 交换线路 | |
| dialer | 拔号器 | |
| dialing | 拔号 | |
| dialing pulse | 拔号脉冲 | |
| dialing signal | 拔号信号 | |
| dialog generator | 对话生成器 | |
| dialog mode | 对话方式 | |
| diamagnetic | 抗磁的 | |
| diamagnetic Faraday effect | 抗磁性法拉第效应 | |
| diamagnetic material | 抗磁体 | |
| diamagnetic polarity | 抗磁极性 | |
| diamagnetic substance | 抗磁体 | |
| diamagnetic susceptibility | 抗磁化率 | |
| diamagnetism | 反磁性 | |
| diameter | 直径 | |
| diameter ratio | 直径比 | |
| diametral voltage of polyphase system | 多相系的径电压 | |
| diametrical connection | 对角接 | |
| diametrical winding | 满距绕组 | |
| diamond | 金刚石 | |
| diamond array | 菱形阵 | |
| diamond blade | 金刚石刀片 | |
| diamond hardness | 维氏硬度 | |
| diamond saw | 金刚石锯 | |
| diamond scribe tool | 金刚石划片器 | |
| diamond scriber | 金刚石划片器 | |
| diamond wheel | 金刚石刀片 | |
| diamond winding | 菱形绕组 | |
| diaphragm | 膜片,隔膜,保护膜,隔板,薄膜 | |
| diaphragm actrator | 薄膜执行机构 | |
| diaphragm capsule | 膜盒 | |
| diaphragm mode filter | 隔膜型滤波器 | |
| diaphragm motor | 薄膜电动机 | |
| diaphragm pneumatic logic element | 膜盒式逻辑元件 | |
| diaphragm pressure gage | 膜合式压力计 | |
| diaphragm pressure span | 膜片压力量程 | |
| diaphragm seal(pressure) gauge | 隔膜压力表 | |
| diaphragm strain gauge | 膜片式应变计 | |
| diaphragm type detecting element | 膜片式检出部 | |
| diaphragm type level meter | 薄膜水位计 | |
| diaphragm valve | 隔膜阀 | |
| diaphragmatic waveguide | 膜片加截波导 | |
| diathermy | 透热疗法 | |
| dic | 数字集成电路 | |
| dice | 芯片 | |
| dice yield | 芯片成品率 | |
| dicer | 切片机 |
