随着三峡工程如火如荼地开展及现代工业的迅猛发展 ,湖北省宜昌市最大秤量大于５０ｔ的地中衡越来越多 ,最大者达１２０ｔ,用２５ｋｇ一个的四等标准砝码来进行检定已不现实。非自动秤三个新检定规程的颁布实施 ,使得自动化程度较低的检衡相形见绌 ,而自载砝码数量远远不够 ,造 With the Three Gorges Project in full swing and the rapid development of modern industry, Yichang City, Hubei Province, the largest weighing more than 50t in the balance of more and more, the largest of 120t, with a 25kg a fourth-class standard weights to test has not reality. The promulgation and implementation of three new test procedures for non-automatic scales dwarfed the check-ups with a lower degree of automation, while the number of self-carrying weights was not enough