主电路以反并联的晶闸管作为控制开关，控制焊接用的电阻点焊变压器通电与否。
In the main circuit, the inverse parallel couple SCRs (silicon-controlled rectifier) are used as a electric switch, switching the transformer of resistance spot welding.
该电路具有一个主支路(1)和与该主支路(1)并联的电阻支路(2)。
The electric circuit has a main branch (1) and a resistance branch (2) connected in parallel with the main branch (1).
阻抗函数用分式多项式近似，并表达为串接的并联电阻、电感的福斯特电路形式。
The impedance function is approximated by fractional polynomial, which is represented as a series connection of parallel RL elements (Foster form).
外电路由串联电阻、电感和并联电容组成。
The external circuit consists of resistance connected in series with inductance and capacitance connected in parallel with them.
若将他励直流电动机输出功率的机理等效为一个与电动机电枢绕组并联的可变电阻，可以得到他励直流电动机可变电阻型等效电路图。
The output power mechanism of a separately excited DC motor can be equivalent to a variable resistance, which is parallel with the armature winding of the motor.
结合电阻并联反馈，利用PCSNIM流程设计了一个用于超宽带（UWB）系统的宽带LNA电路。
A wideband low noise amplifier (LNA) topology for ultra-wideband (UWB) system is proposed by combining PCSNIM de-sign flow with a resistive shunt-feedback.
然而，由于电缆泄漏电阻（RL）与RS并联，实际测量的电阻（RM）有所降低，如图2-34b的并联等效电路所示。
However, since the cable leakage resistance (RL) is in parallel with RS, the actual measured resistance (RM) is reduced, as shown in the parallel equivalent circuit of Figure 2-34b.
但要注意的是NTC热敏电阻，不可并联于电路上，因为其中一只NTC就可能会传导几乎所有的电流。
Be noticed, the thermistor can not be used in parallel since one unit will tend to conduct nearly all the current available.
但要注意的是NTC热敏电阻，不可并联于电路上，因为其中一只NTC就可能会传导几乎所有的电流。
Be noticed, the thermistor can not be used in parallel since one unit will tend to conduct nearly all the current available.
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