This is a dimensionless number because it's length divided by length.
这儿没有量纲，因为是长度除以长度。
The physical process observed in within a duration less than 0.07 dimensionless time.
所观察到的过程发生在无量纲时间<0.07的范围内。
Dimensionless quantities in physics are those that require no unit .
物理学中无量纲的量就是不需要单位的量。
Dimensionless quantities in physics are those that require no unit .
物理学中无量纲的量就是不需要单位的量。
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