1974年我局从国外引进了4套综采设备。1979年引进了18套综采设备和14套综掘机组。1983年以后又陆续引进了12套采煤机、运输机和15套综掘设备。今后还将引进一些采煤机、掘进机和其他机电设备。“七五”期间仍需要再引进一些单机。为了维护国家利益,避免经济损失,根据国务院对进口物 In 1974, our bureau imported 4 sets of fully mechanized mining equipment from abroad. In 1979, 18 sets of fully mechanized mining equipment and 14 sets of fully mechanized excavation units were introduced. After 1983, it introduced 12 sets of shearer, transport aircraft and 15 sets of comprehensive digging equipment. In the future, some shearer, roadheader and other mechanical and electrical equipment will also be introduced. During the “Seventh Five-Year Plan” still need to introduce some stand-alone. In order to safeguard the national interest and avoid economic losses, according to the State Council on imports