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- frequency selector switch 频率选择开关
- And the excitation voltage and output were also fed through the selector switch to the digital voltmeter. 其激励电压和输出也通过选择开关接到数字电压表上。
- Remember that your meter must be in position facing the open window before pressing the SELECTOR switch. 请记得在您按下切换键前;要先将仪器面向开启的窗户.
- The only difference is that you must switch the meter into UV Mode by pressing the “SELECTOR” switch. 唯一不同的是;您必须按切换键(“SELECTOR”)来转换紫外线模式.
- Electric supply device and selector switch for the vacuum pump is located in Local Control Panel on the scraper bridge. 真空泵的配电装置及开关制安装在吸刮泥机上的现场控制盘。
- The pneumatic control system is designed to control either of two valves by using a panel mounted selector switch to choose the valve to be controlled. 气动控制系统采用一个控制面板，安装选择开关来选择所控制的阀门，实现对两个阀门的任何一个单独控制的功能。
- Selector switches for the by-pass butterfly valve is located on MCC2. 旁通电动蝶阀的选择制设在MCC2上。
- the frequency selector of a radio. 收音机的调谐旋钮
- Selector switches for the excess sludge pump is located on MCC2, it is equipped with an emergency stop. 剩余污泥泵的选择制设在MCC2上,在水泵旁设紧急按钮。
- flight instrument selector switch 飞行仪表选择电门
- Local Run-Stop-Remote Starting Selector Switch 停机-摇控启动选择键
- Idle Run - Normal Run Selector Switch 怠速-快速运行选择键
- Measured quantity circuit selector switch 被测量线路选择器开关
- Stand-alone cable input selector switch 独立电缆输入选择选的择转换器
- The system consists of the starters, start valves, start bleed valves, pneumatic ducting, control and power circuitry, start levers and start selector switches. 系统包括起动器、起动活门、起动引起活门、增压管道、控制及电源线路，起动手柄及起动选择开关。
- electromechanical selector switch 机电选择机键
- A switch that moves in synchronism with a pulse device, such as a rotary telephone dial. Each digit dialed causes the movement of successive selector switches to carry the connection forward until the desired line is reached. 一种与脉冲装置同步移动的开关,如旋转式电话拨号盘,每拨一个数字将引起相继的选线器开关移动,使之向前连接直到接上所需线路为止。同stepperswitch。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
