“可作为无效的”可以翻译为 “can be deemed/considered invalid” 或者 “may be regarded as invalid” 。
例句：
This contract contains a clause that could be deemed invalid under certain circumstances.（这份合同包含一条在某些情况下可作为无效的条款 。）
Any evidence obtained through illegal means may be regarded as invalid in court.（任何通过非法手段获取的证据在法庭上均可作为无效的 。）