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依据《量和单位》的国家标准,分析在使用物理量和法定计量单位出现的若干错误,阐述正确使用量和单位名称、符号的重要性。
Based on the national standards of “Quantity and Unit”, analyze the errors in the use of physical quantities and legal measurement units, and explain the importance of correct usage and the names of units and symbols.