We got a new enquiry , the spec. asking material for \"cap\" is PVC (without plumbum), I guess it is a combination word, plum+bum, bum means bottom, does it refer to the shape of plumbum, does it have anything to do with material \"pvc\" ?
2006-04-22 11:03:47 · 1 個解答 · 發問者 Yu Wu 1 in 科學 ➔ 其他：科學
plumbum 是鉛的拉丁文名字,鉛的元素符號 Pb 就是來自plumbum .有不少元素是緣起於其拉丁文名字:Au: AurumHg: HydrargyrumCu: CuprumAg: ArgentumFe: FerrumSn: StannumPb: Plumbum
2006-04-22 19:51:29 · answer #1 · answered by emcsolution 7 · 0⤊ 0⤋