封闭回路 meaning in English

closed loop
loop

Closed circuit ignition
封闭回路式点火
The fundamental law that is applied in this method is kirchhoff ' s first law , which states that the algebraic sum of the voltage around a closed loop is 0 , or , in any closed loop , the sum of the voltage rises must equal the sum of the voltage drop
该方法所使用的一个基本定律是基尔霍夫第一定律，该定律表述为：沿着一个封闭回路的电压代数和为0 ，或者：沿着一个封闭的回路，电压降之和等于电压升之和。