那是在我的权力以内。

It is within my power.

《新英汉大辞典》

而且其权力应限制在一定的范围以内。

And his rights should be hemmed up within some limits.

youdao

变更条款：合同中的一项条款，它给予签约官员单方面对合同作某些变更的权力，但这种变更仅限于合同总的范围以内。

Changes clause: a clause in a contract giving a contracting officer the right to make unilateral changes to a contract, provided that the changes are within the general scope of the contract.

youdao