| 释义 |
pra·se·o·dym·i·um 英ˌpreɪziːəʊˈdɪmiːəm, ˌpreɪsiː-美ˌprezioˈdɪmiəm, ˌpresi-AHDprā'zē-ō-dĭmʹē-əm, prā'sē-
基本英英词源搭配记法近义反义
n.镨¹⁰⁰
Noun:
a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process来自希腊语prasios,韭菜绿，来自prason,韭菜。didymium, 钕镨混合物，来自希腊语didumos,双胞胎，因该元素常与镧相联系，词源同neodymium.praseodymium phosphate磷酸镨praseodymium carbonate碳酸镨praseodymium bromide溴化镨praseodymium hydride氢化镨praseodymium hydroxide氢氧化镨praseodymium nitrate硝酸镨praseodymium fluoride氟化镨praseodymium iodide碘化镨praseodymium chloride氯化镨praseodymium oxalate草酸镨praseodymium peroxide过三氧化二镨…
praseodym-ium生化名词⇒n.镨近义词 PR(=public rel… |