骨盆

WASHINGTON - Scientists unearthed a skull of the most primitive four-legged creature in Earth's history, which should help them better understand the evolution of fish to advanced animals that walk on land. The 365 million-year-old fossil skull, shoulders and part of the pelvis of the water-dweller, Ventastega curonica, were found in Latvia, researchers report in a study published in Thursday's issue of the journal Nature. Even though Ventastega is likely an evolutionary dead-end, the finding sheds new details on the evolutionary transition from fish to tetrapods. Tetrapods are animals with four limbs and include such descendants as amphibians, birds and mammals.

华盛顿-科学家挖掘出一副地球历史上最原始的四足生物头骨，这个有利于帮组他们更好理解鱼类进化成为更先进的陆地行走生物，这个有着三亿六千五百万年年龄的头骨，肩膀和水生生物的一部分骨盆，Ventastega curonica，在Latvia被发现，研究者一篇研究报告发表在在星期三出版的自然杂志上，尽管Ventastega 可能是一个进化的死胡同，这个发现给出了从鱼类到四足动物进化变迁过程的新细节，四足动物是使用四肢的动物并且包括下属的比如两栖类动物，鸟类和哺乳类动物。

Dr Spritzer said: Accurate diagnosis of hip and pelvic fractures in the emergency department can speed patients to surgical management, if needed, and reduce the rate of hospital admissions among patients who do not have fractures.

斯普里策博士说：髋部和骨盆骨折的急诊诊断准确可以加快病人的手术治疗，如果需要，并减少在病人入院率谁没有骨折。

We conclude from this anatomical study that successfulparasacral injection consistently spreads to the pelvic portionof the obturator nerve and to the sacral roots.

我们从这个解剖学研究中得到结论，成功的骶骨旁注射同样扩散到闭孔神经的骨盆部分和骶神经根。

Afterwards, one-foot standing position was simulated to conduct the loading and constraint of the model,the Mises and shear force distributing of the cup were analyzed,forecasting the mechanical risk of prosthetic failure.

模拟人体单足站立状态，而后对重建的人体骨盆模型进行力的加载与约束，分析髋臼内Mises 应力及剪切应力的分布情况，预测术后假体失效的力学危险性。

Pregnant bodies produce a hormone, relaxin, which softens tissues around the pelvis to prepare it for birth.

孕妇松弛，柔软的骨盆有利于生育。

Relaxin helps the pelvis spread so the baby can exit the body, but it also affects the ligaments in the feet, causing a stretching of those ligaments.

松弛素有助于骨盆打开，让胎儿从母体中出来，但松弛素也会影响脚部韧带，使脚部韧带松弛。

Relaxin helps the pelvisspread so the baby can exit the body, but it also affects the ligaments in the feet, causing a stretching of those ligaments.

松弛素有助于骨盆打开，让胎儿从母体中出来，但松弛素也会影响脚部韧带，使脚部韧带松弛。

The doctor recommended that patients use muscle relaxants to relax their overly tense pelvic floor muscles.

医师建议，患者可使用肌肉松弛剂，来放松过度紧张的骨盆底肌肉。

MAIN OUTCOME MEASURES: The stress, strain and displacement nephograms were obtained under axial load.

主要观察指标：计算该加载方式下骨盆的应力、应变及位移的分布情况。

To two, leg's coordination composition and pelvis's motion have done detailed expounding in importance in taking off.

对两腿的协调配合和骨盆的运动在起跳中的重要意义做了详细的阐述。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。