如果他是对的，wiki上的这句话就是错的。我印象基本物理量似乎是有冗余的，不过冗余没那么大，至多一两个吧

“The base quantities of a given system of physical quantities is a subset of those quantities, where no base quantity can be expressed in terms of the others, but where every quantity in the system can be expressed in terms of the base quantities. ”

【 在 jjzhu 的大作中提到: 】
: 我似乎能看懂的就是当时M君说能从其中三个物理量推导出其余几个物理量。
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修改:qtpr FROM 111.167.210.*
FROM 111.167.210.*