...度 电荷密度 防护措施 [gap=431]Keywords] electrostatic;electric potential;electric field intensity;electric density;protecting measures ...
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electric flux density [电磁] 电通量密度 ; 通密度 ; 电位移
electric current density [电] 电流密度
integrated electric density 积分电子密度
electric density in the bar 钢筋内部电流密度
electric charge surface density 电荷表面密度 ; 电荷面密度
Such a terminal secure to an insulating support entering more or less into its interior, and I likewise connect the circuit to it inside or, generally, at points where the electric density is small.
这样的终端安全的一个绝缘支持更多或将进入它的内部少了,我也连接电路,这里面,或一般在点,这里的电子密度很小。
But now, if I integrate the charge density over the entire region, then what I will get is actually the total amount of electric charge inside the region.
如果将电荷密度对整个区域做积分,将得到,在区域内的电量总和。
There is no realistic prospect for widespread electric air travel: the jet engines on aircraft need the high-energy density that only chemical fuels can provide.
广泛的以电力为驱动的空中旅行很不现实:飞机发动机需要高密度的能量,而这些只有化学燃料才可提供。
So, instead of having the periodic variation of water, or the periodic variation of air density here we're talking about an electric field.
不像水或者空气密度的,周期变化,我们这里,讨论的是电场。
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