"用拟声唱法唱" can be translated into English as "sing using onomatopoeic vocal techniques" or "sing with onomatopoeic singing style".
Here, "onomatopoeic" refers to words that imitate natural sounds, and in this context, it's used to describe a singing style that mimics or creates sounds through vocal techniques rather than traditional melodic singing. The first option emphasizes the techniques used, while the second option focuses more on the style of singing. Both are acceptable, depending on the nuance you want to convey.