Firstly this article defines what is administrative levy,then introduces the authorities attitudes towards the nature of administrative levy at present—administrative levy is gratuitous.

Simulation of TCR reactive power compensation with MATLAB for mine DC elevator;

Research and application of reactive power compensation of distribution system for oil-pumping units;

Research of Rural Medium-Voltage Distribution System Based on Reactive Power Compensation;

Harmonic treatment and Var compensation for lifter of main well at Zhangji Mining company;

Research on DSP-based synchronous closing device for var compensation capacitors;

Overview of the present status and development tendency of var compensation technology of power system;

Modeling and simulation of sliding transformer based on reactive compensation;

Intelligent dual-CPU reactive compensation controller for low-voltage systems based on GPRS;

Study on design of power distribution line and reactive compensation of county town grid;

A study on the present situation and countermeasure of non-remunerated blood donation in Chongqing;

"Blood Donation Law" specifies that all the blood for clinical use must come from non-remunerated blood donation.

OBJECTIVE To understand and grasp the non-remunerated blood donation, Longgang District, syphilis, HIV, hepatitis B infection, in order to strengthen management decision-making based on blood.

Methods ELISA technique was used to detect the antibodies of SARS associated coronavirus in the plasma from 158 volunteer blood donors, who were medical workers, before the SARS epidemic.