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答正确。按GB 3101—1993《有关量、单位和符号的一般规则》的规范,在图表中用特定单位表示量的数值时首选的方式是“用量与单位的比值,例如:λ/nm=589.6”。在实践中,“量”通常采用量符号,但也可以使用“量”的中文名称或英文名称的缩写词替代。“PO2”是量“氧分压”英文名称“partial pressure of oxygen”的习惯缩写,而氧分压规范的量符号为“p(O2)”;因此,坐标图的标目或表格的栏目涉及量和单位时,以氧分压为例,首选的表示方式宜为
Correct According to GB 3101-1993 “General Rules for Quantities, Units and Symbols”, the preferred method for expressing the value of a quantity in a particular unit in the chart is the “ratio of dosage to unit, for example: λ / nm = 589.6 ”. In practice, “quantity” usually takes the sign of quantity, but it can also be replaced by the abbreviation of the Chinese name or English name of “quantity”. “PO2 ” is the abbreviation for the amount “oxygen partial pressure ” in the English name “partial pressure of oxygen ” and the amount of the oxygen partial pressure specification is “p (O2) ”; therefore, Of the headings or forms of columns related to the amount and unit, the partial pressure of oxygen, for example, preferred means of expression should be