将下面的语句翻译成英文：氟碳铈矿的表征结果显示稀土元素在氟碳铈矿中主要以氟碳酸盐存在氟碳铈矿中主要元素Ce、Pr、Nd、La含量分别为1998、479、741、1595而氟元素含量为797。

The characterization results of fluorocarbon cerium mineral show that rare earth elements mainly exist in the form of fluorocarbonates in the mineral. The contents of the main elements Ce, Pr, Nd, and La in the fluorocarbon cerium mineral are 19.98%, 4.79%, 7.41%, and 15.95% respectively, while the fluorine content is 7.97%.