它具有比静电电容器大得多的能量密度，又有比二次电池大得多的功率密度。
They are also called battery capacitors, for their high energy density and high power density.
超级电容器似乎能够兼备速度和耐久性这两个优势，这是因为和电池类似，在构造上它采的是用离子和电解液而不是简单依靠静电荷。
The reason ultracapacitors may be able to bridge the gap between speed and endurance is that, like batteries, they use ions and an electrolyte rather than simply relying on the static charges.
为避免静电干扰，该电容器应放在一个屏蔽的测试夹具内。
To prevent electrostatic interference, the capacitor is placed in a shielded test fixture.
在测量一个器件，如电容器上的电荷时，重要之点是要首先关闭静电计的零点检查功能，然后再将电容器连到高阻抗输入端。
When measuring the charge on a device such as a capacitor, it's important to disable the zero check of the electrometer first, and then connect the capacitor to the high impedance input terminal.
利用复数坐标系z上的儒可夫斯基变换，计算带电旋转椭球形电容器的静电能，并对结果进行了讨论。
By using the Zhukovsky conversion in the complex coordinate system, the electrostatic energy of a charged revolving ellipsoidal capacitor is calculated and discussed.
当电压施加在绝缘材料上，会产生一个静电场，电场极化材料内部的原子，使电容器能够储存能量。
When voltage is applied to a dielectric, an electrostatic field is created. The atoms within the material polarize , enabling the capacitor to store energy that can be quickly released on demand.
介绍了用电子分析天平测量平行板电容器两极板间的静电力和真空介电常量的原理和方法。
The theory and method in measuring accurately the electronic and vacuum dielectric constant of parallel plate capacitor are introduced.
介绍了用电子秤测量平行板电容器两极板间的静电力和真空电容率的原理和方法。
The theory and method of measuring the electrostatic force and the permittivity of vacuum in parallel plate capacitor by electronic balance are introduced.
第10周静电场中的导体、电容器和导体的电容；静电场中的电介质、有介质时的高斯定理。
Week 10 conductor in static electric field, capacitor and capacity of conductor, dielectric in static electric field, Gauss theorem in dielectric medium.
本文讨论任意形状电容器的电容、电量及静电能；讨论具有初始电量的电容器串联时的电量及电压分配。
In this account, the capacity, the quantity of electricity and static electrical energy of the capacitor with random configuration are discussed.
本文讨论任意形状电容器的电容、电量及静电能；讨论具有初始电量的电容器串联时的电量及电压分配。
In this account, the capacity, the quantity of electricity and static electrical energy of the capacitor with random configuration are discussed.
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