noe 背诵里的一句话，对吗？

as their vocal chords would be inadequate without controlled muscular support.

without 后面加controlled,  对吗？好怪。

It is a correct sentence.

"controlled muscular support" holisticly perform as the object of "without"( preposition).

Chi:因为他们的发声肌腱就会功能不足（正常运作），（如果）没有控制型肌肉的支持。