检定大型衡器（以下简称大衡）一直是劳动强度大，工作效率低，替代检定时，质量又得不到可靠保证。而杭州市大衡的数量逐年递增，周期检定工作繁忙，不适应经济发展的需要。为此，１９９７年初杭州市质量计量监测中心购进一辆１０ｔ检衡车，一年来的实践证明，检衡车确实... Test large scale (hereinafter referred to as the scale) has been labor-intensive, low efficiency, alternative test, the quality can not be guaranteed. However, the number of large scales in Hangzhou has been increasing year by year, and the work of periodic verification is very busy and does not meet the needs of economic development. To this end, Hangzhou Quality Measurement Monitoring Center in early 1997 purchased a 10t counterbalanced car, the practice over the past year proved that the counterbalanced car really ...