YTM到期收益(率) Yield To Maturity 的缩写Ytn.[化]钇ytterbium oxalate草酸镱ytterbium sulfide硫化镱ytterbium sulfate硫酸镱Ytterbium isotope镱同位素yttrium silicates硅酸钇ytterbium nitride氮化镱yttrium hydroxide氢氧化钇ytterbium nitrate硝酸镱ytterbium chloride氯化镱ytophotodermatitis植物光化性皮炎