This paper takes the essential characteristics of voluntarily,mutual-help, profitability, and innate efficiency as criteria, discusses the problems whether standard principles of cooperatives collide with governmental intervention, considering the realities of China.

The author points out that the principle of "giving priority to efficiency with due consideration to fairness" is the summary of historical experiences since the founding of New China,an important component of our policies and principles,the remedy of heavy stress in fair distribution in the light of planned economy,and a better reflection of the basic viewpoints of Marxism and Lenin Thought.

The author points out that "giving priority to efficiency" is the inexorable requirements for socialist market economy.

Since the Fourth Plenum of the Sixth CPC Central Committee our government again has again emphasized that social fairness should be paid attention to, and adjusting income distribution should be strengthened,but efficiency first while giving consideration to fairness" isn t advocated.

The paper tells us the importance and the objective necessary requirement of insisting on the distributive principium of efficiency first, fairness considered in the social market economy, while referring to it the actual choice during the primary stage.

The relation, between efficiency and fairness,is an important problem in the reforming and opening, in the social market economy The article tells us the implication of efficiency and fairness, fouling on the importance and necessity of insisting on“efficiency first, fairness considered" While sticking to efficiency first,there s possibility and approach to fairnes

Antenna system noise temperature and antenna efficiency are the most important items in the system debugging and checking before the VLBI observation.