根据词典释义，use表示用途、用处、用法时搭配的介词是for。例如：

The law requires the use of seat belts. [=the law requires people to wear seat belts]

We talked about the author's use of irony in the novel.

use表示使用、用这个动作意义时，搭配的介词是of，of表示动宾关系或主谓关系，即of的宾语要么是use这个动作逻辑上的宾语，要么是主语。例如：

Doctors have found a new use for the drug.

I thought you might be able to find a use for this lamp.

Do you have a/any use for this old computer?

你的二个词组中use应该都是用途的意思，介词使用for为宜。