contracted midpelvis

例句：

1. 1.The patient's midpelvis was found to be narrower than expected, which could be a sign of an underlying condition.
   患者的中骨盆发现比预期更窄，这可能是某种潜在疾病的迹象。
2. 2.During labor, the midpelvis can become more constricted, leading to difficulty in delivering the baby.
   在分娩过程中，中骨盆可能会变得更加狭窄，导致分娩困难。
3. 3. This condition is often associated with a shortened midpelvis, which can affect a woman's ability to give birth.
   这种状况通常与中骨盆缩短有关，这可能影响女性的分娩能力。