"不合乎自然规律地" can be translated into English as "unnaturally" or "in violation of natural laws".
"Unnaturally" is a more concise and commonly used expression, implying that something is done in a way that is not in accordance with nature or is artificial.
"In violation of natural laws" is a more formal and precise phrase, directly stating that an action or phenomenon goes against the established laws of nature.
Depending on the context and the desired level of formality, either of these expressions can be appropriate.