... doctoral student：博士生 positive and negative charges：正电荷与负电荷 shone through：shone是shine的过去式。shine through是"(光)通过"。 ...
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the positive and negative charges 正负电荷 ; 正负电
Ultracapacitors store electricity by physically separating positive and negative charges.
终极电容器通过自然分开的正负电荷存储电能。
Everything in the universe -metals, gases, dogs, doughnuts -is made of materials with positive and negative charges.
宇宙中的任何物体都是由带有正电荷和负电荷的物质组成的。
Those molecules themselves are composed of smaller particles that have positive and negative charges of electricity.
那些分子本身是由若干更小的带有正负电荷的微粒所组成的。
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