Together with the kilogram, initially the mass of a decaliter of distilled water, it formed the basis of the metric system.

它和千克（10升蒸馏水的重量）一起构成了公制计量的基本单位。

youdao

So if now I hang on it a mass of one kilogram, I can calculate the period of one oscillation, and one over the period F is the frequency F, and I believe that is something like 38 hertz.

如果在上面,悬挂1公斤物质，我能够计算出,振荡的周期，1除以周期,等于频率，我相信,等于大概38赫兹。

youdao

The name is a reference to International Prototype kilogram, as a base unit of mass in the International System of Units.

它的名字和国际单位中表示基本聚合物质质量千克有关。

youdao

If I pull the one kilogram mass and I let it go, it does something, some acceleration.

如果我拉 1 千克重的物体并松手,就会获得一个加速度

耶鲁公开课 - 基础物理课程节选

Now, I tie this one kilogram mass to it and let it go.

现在,我把这个 1 千克重的物体系上,并松开手

耶鲁公开课 - 基础物理课程节选

You hook one end of the spring to a wall and you pull it from rest by some amount and you attach the one kilogram mass to it.

你把弹簧的一端固定在墙上,然后拉伸一段距离,接着你把 1 千克物体固定在上面

耶鲁公开课 - 基础物理课程节选

' The currently accepted answer is the mass of a cylinder of platinum and iridium called the International Prototype Kilogram.

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