quaternary system

• 四元制,四元系,四元体系

quaternary system的用法和样例：

例句

1. The Liquid Liquid equilibrium data of octane water and octane phosphoric acid water system were measured.
   实验测定了不同温度下辛烷水二元体系和辛烷磷酸水三元体系的液液相平衡数据。
2. The Quaternary system in Hanjiang delta is formed by delta sedimentation which is mainly controlled by river trasportation.
   韩江三角洲第四系是以河流搬运为主而形成的三角洲相沉积物。
3. Previous research has concluded that biogenic gas of the Sanhu region is generated from Quaternary humic source rock.
   在以前的研究中柴达木盆地三湖地区生物气一直被认为是完全由第四系腐殖型有机质所生成的。