Your computer keeps this table for efficiency so that it doesn't have to keep broadcasting ARP requests to computers it has already queried.
你的计算机为了效率而维护这个映射表，这样它就不用不断广播ARP请求去询问它已经询问过的计算机了。
2
According to the computer model, this design could increase wind farm efficiency a hundredfold. The next step for the researchers is to do a field test, trying out these fish dynamics on dry land.