凹陷

An inward fold on the surface of the embryonic ectoderm that develops into part of the anal passage.

原肛肛道胚胎消化道表面的凹陷，发育成直肠的一部分

Ray will show the associated skeletal anomalies, such as skull base invagination, scoliosis, kyphosis, cervical ribs, and many other skeletal anomalies. Axial images with CT may demonstrate an obliterated cisterna magna, tonsillar ectopia, and a normal fourth ventricle.

线可以显示出伴随的骨骼异常，如颅底凹陷，脊椎侧弯，脊椎后突，颈肋，以及许多其他的骨骼异常，CT轴位图像可以显示一个闭塞的小脑延髓池，扁桃体异位，以及正常的四脑室。

Combined transfer of the galea aponeurotica and temporal fascia was used to repair severe infra-orbital soft tissue depression and ectropion of lower lid in 6 cases.

经过对颞区解剖分析，采用带颞浅动脉顶支的帽状腱膜、颞膜轴型瓣加游离植皮的方法，修复眶下组织重度凹陷及下睑外翻6例。

But at this stage, skin cells begin to flatten, and less collagen and elastin means more sag.

但是，在这个阶段，皮肤细胞开始拉平，减少胶原蛋白和弹性蛋白意味着更多的凹陷。

Each building model increases, collapses and returns back to the ground, then grows again in an endless loop.

崩塌后的混合物又在一个模具内再次塌陷（建筑物周围区域的凹陷引发了材料再次塌陷入模具内）混合物随后被压在模具上，并被再次向上推动循环往复

RESULTS: After 34 weeks, patients occured varying degrees of swelling of the eyelids. Incomplete eyelid closure dribbled away. Followed up for 418 months,doubleeyelids of patients were basic symmetry; the arcs were smooth; ptosis was corrected; depression of the upper orbital region was improved obviously; and no complications appeared, such as entropion and ectropion of the eyelid and eyelid deformity.Only 1 eye was rectified insufficiently.

结果：术后3～4wk内患者均有不同程度眼睑肿胀，眼睑闭合不全逐渐消失，随访4～18mo，患者双眼睑重睑基本对称，弧度流畅，上睑下垂矫正，上眶区凹陷明显改善，未出现眼睑内外翻及眼睑畸形等并发症，有1眼欠矫。

In my eyes, for instance, intraorbital implantation of hydroxyapatite sphere is the most effective method for correction and prevention of anophthalmos after enucleation.

在我看来，例如，羟基磷灰石义眼台植入是眼球去除术后最有效矫正和防止眼球凹陷的方法。

According to the principle of sequence stratigraphy , Pinghu formation of Eocene can be divided into four sequences.

根据层序地层学原理，西湖凹陷保俶斜坡始新统平湖组可划分为四个层序。

Alluvial fan and fan delta distribute on the western slope of the depression, and turbidite fan distributes in lake-basin center.

冲积扇、扇三角洲平面上分布在凹陷的西部斜坡带，浊积扇则分布在湖盆中心。

Dongying depression is one of the most prolific hydrocarbon areas in China. The Paleogene stratum consists of underwater fan, littoral-shallow lacustrine and delta facies sandstones.

东营凹陷是重要的油气富集区，在古近系地层发育湖相水下扇沉积、滨浅湖沉积和三角洲沉积等砂岩。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。