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我局在一九八○年将十一个科技成果作了技术鉴定,其中“ZT120自升塔式起重机”,“地下连续墙施工工艺与施工设备”(SF60—80型多头钻成槽机及其地下连续墙施工工艺),为国家(部)级鉴定通过:“手持打孔机具及其应用成套技术”,为地方(市)级鉴定通过:“臂架变幅塔式起重机吨米显示安全装置”,“TD塔吊起重力矩显示——限位装置”,“QTG60型塔式起重机”,“80吨——米折臂式自升塔式起重机”,“CH混凝土减水剂研究和应用技术”,为局级鉴定通过;“TD型塔式起重机双向后控硅调压调速装
In the year of 1980, the Bureau made technical appraisals on eleven scientific and technological achievements, including the “ZT120 self-elevating tower crane” and “the underground continuous wall construction technology and construction equipment” (SF60-80 multi-head drilling slot machine and Its underground continuous wall construction technology), for the national (Ministry) level appraisal passed: “Hand-held drilling equipment and its application of complete sets of technology”, for the local (city) grade appraisal passed: “The jib luffing tower crane ton meters show safety Device, ”TD Tower Crane Lifting Torque Display - Limiting Device“, ”QTG60 Tower Crane“, ”80 Ton - Meter Folding Arm Lifting Tower Crane“, ”CH Concrete Water Reducing Agent Research and Application “Technology” passed for the assessment of the bureau; "TD-type tower crane bi-directional control of silicon regulator