ll chondrite造句

例句与造句

1. L and LL chondrites have lower iron and metal content, but higher iron oxide content in the silicates.
2. We know now that LL chondrites and achondrites are quite different, so this name is no longer in use.
3. However, most LL chondrites have been thermally metamorphosed to petrologic types 5 and 6, meaning that their minerals are homogeneous in composition and chondrule borders are difficult to discern.
4. It's difficult to find ll chondrite in a sentence. 用ll chondrite造句挺难的