... 骶骨的 sacral 骨盆骶骨 pelvisacrum 骶骨骨折 fracture of sacrum ; sacral fracture ; sacrum fracture ...
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等人定义了骨盆骶骨角 pelvisacral angle
从技术上来说，背阵痛发生在胎儿处于背对的位置，它的脸朝上而后脑勺紧靠你的骶骨或者骨盆后方。
Technically, back labor occurs when the fetus is in a posterior position, with its face up and the back of its head pressing against your sacrum, or the back of your pelvis.
当你上体前屈时，脊椎向前移动，但骨盆和骶骨却要保持在原处，特别是屈膝的一侧。
As you begin to bend forward, the spine moves while the pelvis and sacrum tend to remain behind, especially on the side with the knee drawn back.
Najash蛇保留着骶骨，用它来支撑骨盆。
Najash retained a sacrum, a bony feature that supported the pelvis.
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