Terms containing essential element

Subject	English	Chinese
desert.	essential element	主要元素
life.sc.	essential element	必要元素
chem.	essential element	生命必需元素
anim.husb.	essential element	必需矿物质为动、植物生长和发育所必需的矿物元素
space	essential element	必需元素
eng.geol.	essential element	基本要素
ecol.	essential element	营养元素
sport., med.	essential element diet	要素膳食
tech.	essential element of analysis	分析的基本元素
busin.	essential element of information	信息基本元素
fin.	essential elements	票据要项
econ.	essential elements	必需元件
busin.	essential elements	应填事项
space	essential elements of analysis	分析基本单元
tech.	essential elements of drill hole	钻孔要素
earth.sc.	essential elements of information	信息基本要素
space	essential elements of information	情报要素
avia.	essential elements of information	信息要素
tech.	essential map element	地图基要素
tech.	essential mineral element	必需矿物质元素
chem.	essential trace element	必需微量元素
agric., chem.	non-essential element	非必需元素