意为“质量比”的缩写，常用于化学及药理学，描述某物质在混合溶液中的浓度。比方说，2% w/w 意思是这种物质占溶液总质量的2%。公制单位g/g与其意思相同。请采纳答案，支持我一下。
the 23rd in order or in a series. Biochemistry.tryptophan. Chemistry.tungsten. w 4 abbreviation for watt; watts. withdrawn; withdrew. withheld. w/ 5 abbreviation for with. w. 6 abbreviation for warden. warehouse. water. watt; watts.
是质量百分比的意思，也可以说是重量百分比。w是weight的缩写，即质量的意思。也可以用m/m表示，m是mass的缩写。如“5%(W/W)的硫酸”，即表示硫酸的质量比上溶液的总质量为5%。需要注意的是，溶质的质量分数只表示溶质质量与溶液质量之比，并不代表具体的溶液质量和溶质质量。
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Described is the use of thiosemicarbazides of the formula (I) in which R, R, R and R have the meaning given in the description, for the protection of indu... HEUER LUTZ DR,KUGLER MARTIN DR,PAULUS WILFRIED DR,... 被引量: 1发表: 1993年 ...
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This paper contains a list of known weaknesses in algorithms. The relevant weaknesses are presented for each of the examined algorithms, along with their practical meaning as identified by the Discretix Research team. This document is not meant to give any descriptive informat...