complement set造句

"' Complement Set Filtering "'( CSF ) is a method for filtering sets ( email accounts ) and identifies email messages contained in both sets.
By last week, when the rebels struck, the U . N . force was still 3, 000 soldiers short of the full 11, 000 complement set up in February.
One can equivalently describe a collection of binary characteristics as a " split system ", a family of sets having the property that the complement set of each set in the family is also in the family.
It's difficult to find complement set in a sentence. 用complement set造句挺难的