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[时差N小时] 时差N小时:富兰克林与电荷试验(上)
When they hear the name Ben Franklin, many folks think of the Declaration of Independence, the Continental Congress and things like that.听到本杰明-富兰克林这个名字时,很多人首先会想到《独立宣言》,大陆会议等事件。2018-01-15 编辑:clover
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[时差N小时] 时差N小时:富兰克林与电荷试验(下)
Electrons are tiny, negatively charged particles.电子是微小的带负电荷的粒子。2018-01-16 编辑:clover