text: d I rec·t t~s of soc tal and economIc deve I opment of Mongo I Ia for the period ending In 1990 the Programme of development of scientific­ experimental basts-·of MongolIa for 1981-85 has been elaborated which envisages participation of the CMEA countries • . Co-operation with other socialist countries plays en Impor­tant role for the economic development and growth of scientific and technological potentiality of the Republic of Cuba. Regular­ ly held consultations of experts and sclentlflc•technologlcal assistance of the CMEA countries allowed to solve many problems related to the devlopment of certain Industrial production branches of the republ lc. A greater part of equipment used by the Institutes of the Cuban Academy of sciences was furnished by the academies of sciences of the CMEA countries. In 1980 the general agreement on co-operation of the CMEA countries In the Implementation of the Plan for accelerated S&T development In Cuba for a period up to 1990 was signed. ~he·Pfan comprises 17 sub-programmes related, In particular, to sugar cane cultivation, agro-lndustrlal development of citrus ·plants, cattle-breeding and fodder producTion, use of littoral ores, electric power produc­ tion, studies of corrosion problems under tropical conditions. 29-2 !«1· studies of sea resources, etc. The Implementation of this plan envisages carrying out necessary scientific research ensuing from the economic development programmes of the Republic of Cuba. The plan Is mainly oriented towards the development of those spheres of S&T which ensure maximum use of natural resources of the country forming the basis f~r Its long-term development. The plan takes Into account both the national Interests and the Interests of further deepening of integration with other CMEA countries. VIet Nam joined CMEA In July 1978. This act opened new prospects for the development of the republ ic•s economy, science and technology, and further reinforcement of co-operation with other CMEA member States. A particular role Is being attribuTed 
analysis: The text appears to be discussing the development of scientific and technological potentiality in Mongolia and Cuba, with a focus on cooperation with other socialist countries. It mentions various sectors such as sugar cane cultivation, agro-industrial development, cattle-breeding, and electric power production. These sectors are likely to be related to the overall economic development of the countries.