halogen elements造句

例句与造句

1. Whitmore worked on the findings of others and generalized the concept of molecules with a positively charged carbon atom, a carbocation, as an intermediate step in the addition of a halogen element.
2. This was determined by drilling a series of boreholes and measuring the concentration, as well as radiometric age determination of the halogen elements iodine, bromine, and chlorine ( Tomaru et al ., 2007 ).
3. It's difficult to find halogen elements in a sentence. 用halogen elements造句挺难的