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主要是依据双向型体积管的结构特点 ,从理论上推导出双向体积管具有对称性和补偿性 ,另外还介绍了影响体积管实测标准容积值的主要因素。
It mainly deduces the symmetry and compensation of bidirectional volumetric tube based on the structural characteristics of bidirectional volumetric tube. In addition, the main factors affecting the volumetric value of volumetric tube are also introduced.