These include the meter for length, and the second for time.

包括长度单和时间单秒。

In the UK, the yard was considered the base unit of length.

在英国，码被认为基本的长度单。

D. It was an exceptional unit of length.

D. 一个特殊的长度单。

36. According to the text, what was the basic unit of length in the UK?

36. 根据本文，英国的基本长度单什？

I would not say that. No one would say that. A light year is a unit of distance not time.

我可不说。没人说，光年长度单不时间单。

A meter is a unit of length equal to 100 centimeters.

等于100厘的长度单。

That's why knowing the length of the astronomical unit is so important!

就为什知道天文单的长度如此重要的原因！

Today, Servius's legion, along with three others, has undertaken a “great march” of 30,000 Roman paces, the equivalent of nearly 36 kilometers.

今天，Servius的军团和其他三个团，进行了3万罗马步（古罗马长度单）的宏大行军仪式，相当于近36千。

And still with unit lengths. You often think of these as the rotation matrices.

还单长度 你通常认为些旋转矩阵。

These are the ones which leave all the basis vectors perpendicular to each other with unit lengths.

些使所有基向量彼此垂直并具有单长度的向量。

In the Metric System, we have: millimeter: A millimeter is a very small unit of length in the Metric System.

在公制中，我们有：毫：毫公制中非常小的长度单。

I just used three examples of length measurements with three different units, inches, feet, and meters.

我刚刚使用了三个不同单的长度测量示例：英寸、英尺和。

A light-year is a unit of length, with one light-year equaling the distance that light would travel in a vacuum in one year.

一光年长度单，一 光年等于光 在真空中一年的传播距离。

So, if you were to measure the British coast, using length of 100 km, you'd end up using 28 of them and get an answer of 2800 km.

所以，如果你测量英国的海岸时使用的一百公里的单长度，你最终测到28个，得到的结果就两千八百公里。

For the majority of recorded human history, units like the weight of a grain or the length of a hand weren't exact and varied from place to place.

对于大多数有记录的人类历史，谷物的重量或手的长度等单并不精确，并且因地而异。

The unit length is l. According to the finite difference principle, the finite difference form of Equation (4) is For the boundary conditions of the existing tunnel, it is assumed that both ends of the tunnel are free.

单长度为 l。根据有限差分原理，方程（4）的有限差分形式为：对于现有隧道的边界条件，假设隧道的两端都自由的。