n. parasang ; milliarium
misc. distance unit
... 以码为单位的距离 distance in yard 距离单位 parasang ; distance unit 天文距离单位 Astronomical Unit ...
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角距离单位等于(待查表)毫弧。
A unit of angular distance equal to one thousandth of a milliradian.
测试距离单位为毫米,中和时间单位为秒。
没有人会那么说,一光年是距离单位不是时间单位。
No one would say that. A light year is a unit of distance not time.
A lot of times we talk about these kind of distances either in nanometers or in angstroms so we can say this is 70 angstroms.
我们在讨论此类的距离时,很多都用到纳米和埃米的单位,所以它的波长是70埃米。
So what we do is we pick an origin, call it zero, we put some markers there to measure distance, and we say this guy is sitting at 1,2,3,4,5.
我们现在选择一个原点,称其为零点,我们做一些标记来测量距离,这个点在五个单位长度的地方
So, we can just plug it in. Speed is equal to the distance traveled, which is lambda over the time elapsed, which is 1 over nu. so, we can re-write that as speed is equal to lambda nu times nu, and it turns out typically this is reported in meters per second or nanometers per second.
经过的距离和所花的时间,我们把它们带进来,速度等于经过的距离,也即是lambda除以,所花的时间,通常它的单位,是米每秒或者纳米每秒。
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