1978年以来,由中国建筑科学研究院建筑结构研究所负责和有关单位参加的“单根应力筋及小型钢丝束张拉锚固体系”专题研究已于今年全部完成。该专题包括YC18型千斤顶、配套锚夹具及工艺和电动小油泵三项内客,本刊于1980年第4期介绍了其前两项内容,现再发表第三项内容——电动小油泵的研制情况,供大家参考。 Since 1978, special studies on the “single stress ribs and small steel wire tension anchor anchor solids system”, which are under the responsibility of the Institute of Building Structures, China Academy of Building Research, and related units, have been completed this year. The topic includes three types of YC18 jacks, supporting anchor fixtures and technology, and electric small oil pumps. This issue was first introduced in the 4th issue of 1980. The third item is now published - the electric small oil pump Development situation for your reference.