它们完全一样，除了电荷相反。
They are exactly alike, except that they have opposite electrical charges.
除了电荷相反外，它们完全一样。
They are exactly alike except that they have opposite electrical charges.
我怎么知道它的电荷分布呢？
空间内出现的微粒证明了电荷的存在。
The particles that materialize in the space make the charge manifest.
同性的电荷互相排斥。
带负电荷的区域非常大：数百米厚，直径达几千米。
The negatively charged region is large: several hundred meters thick and several kilometers in diameter.
然后上升气流将轻盈的、带正电荷的冰晶带到云的顶部。
Then updraft wind currents carry the light, positively charged ice crystals up to the top of the cloud.
我要说的是，完全相反，正电荷集中在中心，在一个非常非常小的体积内。
I'm going to say, quite to the contrary, the positive charge is concentrated at the center in a tiny, tiny, tiny volume.
在20世纪60年代早期，研究人员试图将火箭尾部的电线发射到雷云中，以便于为这些雷云产生的巨大电荷建立一个简单的放电路径。
In the early 1960s, researchers tried firing rockets trailing wires into thunderclouds to set up an easy discharge path for the huge electric charges that these clouds generate.
质子是带正电荷的物质的基本粒子。
A proton is an elementary particle of matter that possesses a positive charge.
由于这些电子都带负电荷，它们会相互排斥。
As these electrons are negatively charged they will attempt to repel each other.
大部分物体都是电荷平衡的——含等量的电子和质子。
Most things are balanced - with equal numbers of electrons and protons.
在暴风云的形成过程中，带正电荷的粒子与带负电荷的粒子相互分离。
The separation of positively and negatively charged particles takes place during the development of the storm cloud.
当这些负电荷距离地面不到100米时，会遇到一股来自地面的正电荷粒子流。
When a stream of these negatively charged electrons comes within 100 meters of the ground it is met by a stream of positively charged particles that comes up from the ground.
如果是原子质量一定，而电子很小，那么带正电荷的部分几乎占据了全部质量。
If the atom is fixed mass, and the electron is tiny, it must be the positives have all the mass.
带正电荷的粒子集中在云团的顶部和底部，但中间区域形成的是带负电荷的粒子。
Concentrations of positively charged particles develop at the top and bottom of the cloud, but the middle region becomes negatively charged.
为了利用这种基质金属蛋白酶，钱博士将他的荧光染料和一些正电荷一同连接在一个小的发夹形状的蛋白质分子的一端。
To make use of the MMPs, Dr. Tsien attaches his fluorescent dye, along with some positive charges, to one side of a small hairpin-shaped protein molecule.
当一只昆虫与它们擦身而过时，就会触发一种微小的电荷，电荷沿着树叶里的隧道向下移动，并打开泪液细胞膜上的小孔。
When an insect brushes against them, this triggers a tiny electric charge, which travels down tunnels in the leaf and opens up pores in the tear's cell membranes.
它们还是会掉下，尽管有电荷。
这是每电荷库伦,这是每摩尔库伦。
它们也许是带有正电荷的粒子。
单位电荷乘以单位电压会得到什么呢？
出于此结论，他总结出电荷是量子化的。
然后我们得到了净电荷。
它具有较高的电荷密度。
原子核的电荷量是多少？
这些电荷最终以闪电的形式释放。
正电荷在这儿，负电荷在周围。
You've got a positive charge here with a negative charge around it.
这是一个负电荷，这是一个正电荷。
This is a point that's negative, and this is the point that's positive.
这是一个负电荷，这是一个正电荷。
This is a point that's negative, and this is the point that's positive.
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