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- double pole double throw 双刀双掷
- double pole double throw switch 双极双掷开关
- The SL version has one function, either undercurrent or undervoltage, with a PDT (single pole double throw) for signal output. SL版具有单功能，在低电流或低电压的情况下，信号输出具有PDT（单极双摆）。
- A type of series-parallel single pole double throw(SPDT) switch with broadband and high isolation was designed and made up by utilizing several PIN diodes. 采用多个P IN管设计并制作了一种串/并联结构的宽带高隔离度微带单刀双掷(s ing le po le doub le throw;SPDT)开关.
- In the thesis, the main research topic is mechanical switch, including SPST (Single Pole Single Throw), SPDT (Single Pole Double Throw) and keyboard switch. 本设计中主要研究的是机械类开关，包括单刀单掷开关和单刀双掷开关及键盘开关。
- Contact arrangement available in choice of single pole double throw (SPDT) or single pole single throw (SPST), either normally open (NO) or normally closed (NC). 联络安排，可在选择单极双掷（ SPDT产品技术）或单极单掷（的SPST ） ，无论是通常开放（无）或常闭（ NC ）进行。
- DUAL SWITCH - Single Pole Double Throw 双开关:单刀双掷
- SINGLE SWITCH - Single Pole Double Throw 单开关:单刀双掷
- Two single pole double throw end of travel micro switches with adjustable cams 配置可调节凸轮的单刀双掷行程微开关
- Four single pole double throw auxiliary micro switches with adjustable cams 电子均衡控制定位器·四个配置可调节凸轮的单刀双掷辅助微开关
- Two single pole double throw travel-stop limit switches with adjustable cams and 2 aux S.P.D.T. - standard 配置可调节凸轮的双刀双掷行程制动限制开关,配置2个辅助单刀双掷开关-标准配置
- three pole double throw switch 三刀掷开关
- four pole double throw 四极双掷
- single pole double throw switch 单刀双投开关
- single pole double throw (SPDT) 单刀双掷开关
- This paper introduces the electric current magnifying coefficient of double pole triode which works in the reverse active region and compares with its positive active region. 通过对有源区放大系数的分析，导出了双极型三极管工作在反向有源区的电流放大系数，并与正向有源区的电流放大系数进行了比较和分析讨论
- The results show that occurrence of the single or double pole block on the DC lines, or short-circuit faults on the DC or AC lines will not influence seriously on power system stability. 仿真结果表明：当南桥、华新换流站发生直流输电单双极闭锁以及交、直流侧短路故障时，不会给系统带来稳定问题。
- Available microwave switch configurations include a simple single-pole double throw (SPDT) switch, multi-position switch, matrix, and cascade. 可用的微波开关配置包括简单的单刀双掷（SPDT）开关、多位置开关、矩阵和级联开关。
- All switch contacts shall normally be double-pole double throw (DPDT), Form C, hermetically sealed (when available), rated for 1 ampere minimum at 24VDC. 所有开关触点应通常是双刀双掷（DPDT），C型，（如果可能的话）进行密封，24VDC电压下的额定电流最小为1安培。
- Features: apply double poles and single lever hydraulic design, work stably, easy to change tooling. 特点：采用双柱单杆式液压设计，运行稳定，更换工装方便。
