本体元建模
ontological meta-modeling
本体定义元模型
ontology definition metamodel
样本单元体REV
representative element volume
超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
LiCl-Li2B4O7-H2O三元体系
ternary system LiCl Li 2B 4O 7 H 2O
NdCl3-BaCl2-NaCl三元体系
Ternary system NdCl3-Bad 2-NaCl
NdCl3-LiCl-KCl三元体系
ternary system NdCl3-LiCl-KCl
NH3-CO2-H2O三元体系相图
NH3-CO2-H2O ternary system
tertiary phase of NH3-CO2-H2O