单极开关的极数是指开关开断（闭合）电源的线数，如对220V的单相线路可以使用单级开关开断相线（火线，L线），而零线（N线）不经过开关，也可以使用2级开关同时开断相线和N线。对应于3相380v,则分别有3级或4级开关使用情况。这里开关一般指断路器。
... single phase synchro-control单相同期控制 single pole switch单极开关 single-core cable单芯电缆 ...
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... single step switch 单步开关 single switch 单极开关 single switch call 单接电话交换呼叫 ...
基于116个网页-相关网页
... one-pole knife switch 单极闸刀开关 one-pole switch 单极开关 one-shot switch 单触发开关；冲息开关 ...
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... single-pole scaffold 单柱脚手架 Single-pole 单刀 ; 单极 ; 单芯 ; 单极开关 Single-pole ball 单刀球 ...
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明装跷板式单极开关 Surface-type Rocker Single-pole Switch
明装倒扳式单极开关 Surface-type Tumbler Single-pole Switch
暗装跷板式单极开关 Flush-type Rocker Single-pole Switch
暗装倒扳式单极开关 Flush-type Tumbler Single-pole Switch
单极开关掣 single-pole switch
单极闸刀开关 [电] single-pole knife switch ; onepoleknifeswitch ; one-pole knife switch ; single pole single throw
单极单投开关 single-pole single-throw switch ; pole single throw switch ; single-pole single throw switch
单极三投开关 single-pole three throw switch ; pole three throw switch
单极分路开关 single-pole distribution switch
为了实现波束可控，可用开关控制无源单极子的接地状态来改变其阻抗和电流分布。
In order to get beam steering, the switches control the states of the parasitic monopoles to change their impedance and current distribution.
摘要对比了半绝缘多能谷光电导开关中光激发单极畴和耿氏器件中偶极畴的物理机制。
The photon-activated monopole domain in a semi-insulating multi-valley photoconductive semiconductor switch and the dipole domain in a Gunn device are compared.
有限元法的RF 5521结合低噪声旁路放大器(LNA)和一个单极三掷(SP3T)开关。
The RF5521 FEM combines a low noise amplifier (LNA) with bypass and a single pole three throw (SP3T) switch.
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