I make it very simple — I make the length one meter, and I hang on the rod, at the bottom, a mass m, which, let's say, is 500 kilograms.
为了简单-，假设长度为一米，我握住这棒子，底部挂质量M的物体，重为500公斤。
2
The M-Bus bus is a kind of communication format of Meter bus, is the New European standard for remote installation data readout system.
通讯总线是一种欧洲标准的仪表总线通讯格式，是为了远程读取热表而制定的一种新的欧洲标准。
3
In the end of the paper, we further discussed M-BUS, the significant meter bus in the field of heat metrology automation, and pointed out its advantages over RS-485.