量和单位的国家标准
发布时间：2019-05-23 08:51
【摘要】：正量的符号一般为单个拉丁字母或希腊字母,并一律采用斜体(pH例外),如放射性活度的符号为A,单位为Bq;计量单位均用国家法定计量单位及其导出单位,并以单位符号表示,所用计量单位符号均为正体,如1s(1秒)、2min(2分钟)、3h(3小时)、4d(4天,序数词不用符号、如第4天,不能写成第4d)、1a(1年)、5cm(5厘米)、6kg(6公斤)等。复合计量单位的斜线不多于1个,如mg/kg/d,应改为mg/(kg·d)
[Abstract]:The positive symbol is generally a single Latin letter or Greek letter, and all of them are italic (with the exception of pH). If the symbol of radioactivity is A, the unit is Bq;. All units of measurement are national legal units of measure and their derived units, and are represented by unit symbols, such as 1s (1 second), 2min (2 minutes), 3 hours (3 hours), 4 days (4 days, no symbols for ordinal words), For example, on the 4th day, it can not be written as the 4th day), 1a (1 year), 5cm (5 cm), 6kg (6 kg), etc. No more than 1 slash for a compound unit of measure, such as mg/kg/d, should be changed to mg/ (kg 路d)
【分类号】：+
本文编号：2483760
[Abstract]:The positive symbol is generally a single Latin letter or Greek letter, and all of them are italic (with the exception of pH). If the symbol of radioactivity is A, the unit is Bq;. All units of measurement are national legal units of measure and their derived units, and are represented by unit symbols, such as 1s (1 second), 2min (2 minutes), 3 hours (3 hours), 4 days (4 days, no symbols for ordinal words), For example, on the 4th day, it can not be written as the 4th day), 1a (1 year), 5cm (5 cm), 6kg (6 kg), etc. No more than 1 slash for a compound unit of measure, such as mg/kg/d, should be changed to mg/ (kg 路d)
【分类号】：+
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