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.
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。
It did so indeed, and much sooner than she had expected: before she had drunk half the bottle, she found her head pressing against the ceiling, and had to stoop to save her neck from being broken.
小瓶真的照办了，而且比她期望的还快。她还没有喝到一半，头已经碰到了天花板，因此，必须立即停止，不能再喝了！
Be sure not to lean your head forward or "turtle neck" when pressing shoulder blades together.
记住，当你拉扯肩胛骨时千万不要将头前倾或是做出像乌龟脖子一样的姿势。
As he came round, days later, he grabbed me and hugged me so hard I had to push with all my might to keep my head from pressing down on his newly stitched torso.
几天后他回来时，他抓住我紧紧地拥抱着，紧得使我要用尽力气推开他，以免压到他身上刚缝合的伤口。
When he first described the incident, Lochte recalled the robber pressing the gun against his head but now he changes his story, saying he only pointed the weapon at him.
当他第一次描述这起事件的时候，他说劫匪拿枪抵住了他的头，但他现在又说，对方是用枪指向他。
In order to analyze the rules of head width reduction of slab during side pressing, a finite element model was established by method of numerical simulation.
为了分析定宽过程中板坯头部失宽的变化规律，利用数值模拟的方法建立了板坯侧压的有限元模型。
The famous drum roll is produced by alternatively pressing the sticks on the drum head striving for a controlled rebound.
著名的击鼓是由交替按贴在鼓皮的控制反弹努力。
During using this prduct, place the membrane on the filter head, and fixed it by pressing the funnel to make it an integrated filtration device.
本系统在使用时，将滤膜放置于滤头上，并用滤杯固定压紧，形成一个完整的过滤装置。
Head cracks may appear in the processing production due to the sheet surface scratches and improper control of pressing temperature.
封头裂纹产生原因可能是加工过程中板材表面划伤缺口和热压温度控制不当所致。
The manual pressing section makes the downward movement by a slide cylinder and a pressing head driven by a pressing rod, and the travel of the pressing head is controlled by a limited ring;
手动按压部分由按压杆带动滑柱及按压头向下运动，并通过限位环来控制按压头的行程；
In the time of pressing the pile, the grout are inject into the soil. When the pile tip reaches the design depth, then continue to inject grout into the pile, so that the pile head expand.
在压桩过程中同时在桩侧注入浆液，桩尖达到设计深度后，浆液随着桩的沉入在桩端形成注浆扩大头。
Massaging from head to foot , which is herbalist doctor massage, can improve sleeping by dotting, pressing and kneading.
全身按摩是指中医推拿，以点，按，揉的手法来达到改善睡眠的。
If you have special requirements, test pressure exceeds 0.5mpa, the matching manufacture fixture is fixed on the heat exchanger tube plate, pushing pressing head test.
若有特殊要求试验压力超过0.5MPa时，可制做配套夹具固定在换热器管板上，推压枪头进行试验。
If you have special requirements, test pressure exceeds 0.5mpa, the matching manufacture fixture is fixed on the heat exchanger tube plate, pushing pressing head test.
若有特殊要求试验压力超过0.5MPa时，可制做配套夹具固定在换热器管板上，推压枪头进行试验。
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