advances on sales

The development of intelligent prepayment multifunction instrument;

智能预收费多功能表的研制

Pre-topologies and pre-convergence classes of family of nets;

预拓扑与网族的预收敛类

The author holds that prior collection of electricity fees goes beyond the scope of regulation by the Law Against Unfair Competition.

电力企业电费拖欠严重,而预收电费方式则是避免拖欠电费的有效途径,但却被一些政府部门认为是利用自身的垄断地位限制竞争,违反了我国的《反不正当竞争法》。