translation.en: And we have a flexible, powered catheter with a special wire loop tip that stays inside the crunchy part of the marrow and follows the contours of the hip, as it moves around.
translation.zh: 这种可弯曲的，有动力的中空管子 并带有特殊金属环状顶端，它能够进入骨髓海绵状的部分， 并沿着臀部的轮廓而移动采集。