一、问题的提出黄河修堤压实质量要求精度为百分之一(干幺重计算到零点零零一,含水量计算到百分之一),因此,称量时必须准至一克以下。但目前黄河上试验干幺重所用的“克称”星距都很小,平均每克所占距离还不到零点五毫米,称量时难以读出一克以下读数, First, the issue put forward the compaction quality requirements of the Yellow River repair embankment accuracy of one percent (dry unitary calculation to zero one hundred and one, the water content calculated to one percent), therefore, weighing must be allowed to one gram the following. However, at present, the test of the Yellow River unitary weight used in the “g” said the star is very small, the average distance of less than 0.5 mm per gram, the weighing is difficult to read one gram below the reading,