3..All of them are linked to the central unit either by point-to-point or multidrop cable lines.This central unit may be a host computer or a file server.
网络也没有主机,每机器都和其机器互相接,成一。
4.Still, unless rates are linked to the level of demand, much of the benefit of smart grids will fail to materialise, says Mr Faruqui of the Brattle Group.