However, neither major elementnor trace element geochemical characteristics can be explained by a simp le model of magmatic origin.
但是，无论是主元素还是痕量元素地球化学特征，均不能用单一的岩浆成因模型得到解释。
2
Nor, Mr Phelps has written, does it mean "a pristine element of nature not susceptible to intervention by man."
而意味着“自然的原始成分不容易被人们介入操纵”，菲尔普斯先生这么写道。
3
Although you could model all your data without attributes, they can be a very intuitive choice for data items which are known in advance to never repeat (per element) nor have any sub-fields.