开关电容的英文：
switching capacitor

switching是什么意思：
n. 开关，电闸
v. 转变，切换；用开关把…开启（或关掉）

Hand me that switch.
把鞭子递给我。

The switch hovered in the air.
鞭子在空中摇晃。

He switched the boy.
他鞭打那男孩。

switch point housing
尖轨密贴

switch point indicator
道岔尖轨表示器

capacitor是什么意思：
n. 电容器

This arrangement is known as a parallel-plate capacitor
这种装置称为平行板电容器。

The capacitor surface temperature will not exceed the upper rated temperature.
电容器表面温度不许超过额定上限温度。

Capacitor for electromagnetic interference suppression of AC power supply
抑制电源电磁干扰用电容器

The pulsations in the rectified current can be reduced by using a capacitor
经过整流的电流的脉动，能够利用一个电容器使其减小。

The capacitor can be fixed or varied by switching discrete capacitor segments in and out as dictated by system conditions.
电容器可以是固定的或可变的,可变时则根据系统的情况决定离散电容器分段的投入或退出。