macroelement majorelement
Tea contains number of elements and trace elements which the human body needs.
茶叶中含有人体所需的大量元素和微量元素。
—— 给力词典精选The suitable nutrient solution formula was calculated according to the water quality in Beijing.
根据对主要大量元素的实际吸收情况,推算网纹甜瓜合适的营养液配方。
—— 给力词典精选