direction-finder set 测向机

direction-finding antenna 测向天线

direction-finding apparatus 测向仪

direction-finding compass 测向罗盘

direction-finding device 测向装置

direction-finding receiver 测向接收机

direction-listening device 声波定向器

directional antenna 定向天线

directional comparison carrier relay 方向比较载波继电器

directional comparison microwave relay 方向比较微波继电器

directional control valve 方向控制阀

directional coupler 定向耦合器

directional detector 方向探测器

directional distance relay 定向距离继电器

directional filter 方向滤波器

directional float tray 浮舌塔盘

directional ground relay 定向接地继电器

directional gyro 定向陀螺仪

directional gyroscope 定向陀螺仪

directional HF antenna 定向高频天线

directional hydrophone 定向水听器

directional impedance relay 定向阻抗继电器

directional microphone 定向传声器

directional overcurrent relay 定向过流继电器

directional phase shifter 定向移相器

directional power meter 定向功率计

directional power relay 定向功率继电器

directional receiver 定向接收机

directional relay 定向继电器

directional silicon steel strip 各向异性硅钢片

directional valve 方向阀

directional variable microphone 方向可变麦克风

directional wattmeter 定向瓦特表

directional-type tricone bit 定向型三牙轮钻头

directly-fed coil 直馈式线圈

director coil 指示器线圈

director fault diagnosis tester 指挥仪故障诊断仪

director simulation circuit board tester 指挥仪仿真电路板检测仪

director telescope 光学瞄准器

director valve 导向阀

director 导向器

Direz 敌菌灵

dirigible balloon 可操纵气球

dirigible fabric 气球布

dirndl apron 装饰用围裙

dirndl 紧身连衫裙

dirt catcher 滤尘器

dirt collector 吸尘器

dirt dispersion agent 阻垢分散剂

dirt oil pump 污油泵

dirt proof sleeve 防污套

dirt separator 除污器

dirt tub 污物桶

dirt wagon 垃圾车

dirt-trap 集尘器

dirty oil 污油

dirty ship 重油船

dirty tanker 原油油轮

disalicylidene ethylenediamine 双水扬醛缩乙二胺

Disan 地散磷除草剂

disappearing fibre 溶解性纤维

disappearing-filament optical pyrometer 热丝掩盖式光测高温计

disappearing-filament pyrometer 热丝掩盖式光测高温计

disazo dyestuff 二重氮化染料

disc arrester 圆盘式避雷器

disc atomizer 圆盘式雾化器

disc attenuator 圆盘形衰减器

disc balling machine 圆盘造球机

disc brake 圆盘闸

disc breaker 盘式压破机

disc camera 转盘式照相机

disc capacitor 圆盘形电容器

disc ceramic capacitor 盘状瓷介电容器

disc ceramic trimmer 圆片形微调瓷介电容器

disc clutch 圆盘离合器

disc comparator 转盘比色器

disc coulter 圆盘犁刀

disc coupling 圆盘联轴器

disc crank 圆盘形曲柄

disc crusher 盘磨机

disc cultivator 圆盘式碎土机

disc curler 圆盘卷边机

disc cutter 盘形铣刀

disc DC motor 盘式直流电动机

disc discharger 盘式放电器

disc dryer 圆盘干燥器

disc electrometer 盘式静电计

disc emery wheel 切割砂轮

disc evaporator 盘式蒸发器

disc exhauster 转盘式排气箱

disc feeder 盘式加料机

disc filter 盘式过滤机

disc finishing machine 圆盘磨光机

disc friction press 圆盘摩擦压力机

disc furrower 圆盘开沟铲

disc gauge 圆盘规

disc grinder 盘磨机

disc harrow 圆片耙

disc heat interchanger 盘式换热器

disc memory 盘式存储器

disc mill tool 盘形铣刀

disc mill 圆盘粉碎机

disc milling cutter 盘形铣刀

disc mixer 盘式搅拌器

disc notching machine 圆盘切口机

disc of pump 泵轮

disc oiled bearing 圆盘注油轴承

disc pack 磁盘部件

disc plate 圆板

disc plough 圆盘犁

disc polisher 圆盘抛光机

disc pulverizer 盘式粉磨机

disc record 唱盘

disc recorder 唱片录音机

disc rotor 圆盘转子

disc ruling machine 圆盘划线机

disc saw 圆锯