英语语法分析

Since 1835 when the mineral parisite was discovered, over 150 years have passed.

氟碳钙铈矿从1835年发现至今已有一百五十多年的历史。

The stacking fault and other crystal defects in the crystal structure of parisite have been discussed.

讨论了氟碳钙铈矿结构中的堆垛层错等晶体缺陷现象。