中央骨

Further in the gallery was the huge skeleton barrel of a Brontosaurus. My museum hypothesis was confirmed.

这时，我发现长厅中央竖着的瘦骨磷峋的怪东西显然是一具大骨骼的下半部分。

The radiologic signs of dural ossification as depicted in the bone windows of CT were of 2 types:(1) the tram track sign, where there was a hyperdense bony excrescence with a hypodense center and (2) the comma sign, where there was evidence of ossification of one-half of the circumference of the duramater.

硬膜骨化的影像学征象在CT骨窗描述为2种类型：(1)轨道征，即两侧有高密度骨赘形成伴中央低密度区；(2)逗点征，即硬膜周围有一半骨化的证据。

Sanctus. Mandibular fenestra expanded anteriorly. Maxilla protruding more anteriorly than in C. sanctus. Wing claw less developed. Sternum relatively elongate with a "V"-shaped anterior notch. Sternum with a pair of short posterior proceses. Tarsometatarsus relatively short. Pygostyle expanded distally.

上颌骨较圣贤孔子鸟向前突出，指骨爪没有圣贤孔子鸟那样伸长、强壮，胸骨比较拉长，前喙中央有一凹刻构造成"V"字形，同时胸骨两侧有一对短的后侧突，跗蹠骨较圣贤孔子鸟短，以及尾综合、骨末端膨大。

Appropriate removal of the cervical central endplate will not undermine the axial stress of the cages or bone graft but could facilitate the synostosis.

适当地去除部分中央终板对内植物或植骨块的承受轴向应力的影响不大，同时能促进植骨块的融合，有着一定的临床价值。

Abstract］ objective to improve the diagnosis of non-ossifying fiboma by analysing its x-ray feature.methods plain x-ray films was performed in all patients.x-ray finding in 8 cases with pathologically-confirmed non-ossifying were analyzed.results the clinical symptom was mild,the lesions occurred usually at the metaphysis of the long bones,the affected bones included femur（n=4）,tibia（n=3）,humerus（n=1）.cortical type was seen in 5 cases,presenting as unilocular or multilacular transparent areas with in the cortex or tightly beneath the cortex,the lesion had a sclerotic margin.which was more obvious at the marrow side.medullary type was seen in 2 cases.the lesion was located at the center of the bone and grew centrally.the tumor was manifested as unilocular or multilocular.tramsparent area with sclerotic border and the bone cortex became thinner with slightly expanding on 11 sides.conclusion plain radiography is the elementally means to detect this disease.based on the typical x-ray signs of non-ossifying fibroma combined with clinical data,correct preoperative diagnosis can be made in most cases.

目的 探讨非骨化性纤维瘤的x线表现以提高诊断水平。方法所有病例均摄有x线平片，分析经病理证实的8例非骨化性纤维瘤。结果临床症状轻，好发于下肢长骨干骺端或骨干，股骨4例，胫骨3例，肱骨1例。皮质型5例，表现为皮质内或紧贴皮质下的单层或多层透亮区，病变向骨内发展进入髓腔，周围有致密硬化带环绕，以髓腔侧明显；髓质型2例，病灶在骨内中央发展，显示为单房或多房透亮区，边缘有硬化，骨皮质菲薄，轻微向周围膨隆。结论 x线为最基本的检查方法，典型病例x线平片结合临床症状即可明确诊断。

Results: Regenerated mandibular segments of over 3cm length were created in all canine models. The bone density and intensity of the central growth zone of regenerated segments were about 15% of the normal part of homolateral mandible in three monthes, and got to about 40% in four monthes, and 60% in five monthes.

结果：各实验犬牵引再生骨段长度均达到3.0 cm以上，术后3个月再生骨中央生长区强度和密度达同侧正常骨段的15%左右，术后4个月时可接近正常骨的40%，术后5个月时可达正常骨密度的60%左右。

The focus in long bone appears patchy geographic type, the courser of its long axis was coherent with the stress bone trabecula; the focus in vertebral bodies show laterigrade band-like which was distributed in the middle of the vertebral bodies or near the termibal lamella and plumbed with stress bone trabecula of the vertebral bodies.

在长骨灶病呈长斑片地图样，其长轴大体与应力骨小梁走行相一致；在脊柱椎体病灶表现为分布于椎体中央或近终板区的呈横形小片条带状，与椎体应力骨小梁排列垂直。

Sanctus. Mandibular fenestra expanded anteriorly. Maxilla protruding more anteriorly than in C. sanctus. Wing claw less developed. Sternum relatively elongate with a "V"-shaped anterior notch. Sternum with a pair of short posterior proceses. Tarsometatarsus relatively short. Pygostyle expanded distally.

上颌骨较圣贤孔子鸟向前突出，指骨爪没有圣贤孔子鸟那样伸长、强壮，胸骨比较拉长，前喙中央有一凹刻构造成&V&字形，同时胸骨两侧有一对短的后侧突，跗蹠骨较圣贤孔子鸟短，以及尾综合、骨末端膨大。

On the 14th day, bone trabecula was formed on the experimental group I, but there was only fibrous tissue on control group.

切片上，确定骨缺损区中央，距骨断端2mm、5mm为A、B、C三区，利用真彩色计算机图像分析系统在各区间测量BMP值。

Drills in the median line with the small crack marks the good median line position, The horizontal osteotomy is then completed with a saw, and removal of midline wedge of bone from a lingual approach.

在中线用小裂钻标记好中线位置，在左右下牙6到6之间截骨，截骨完成后，再于颏部中央截取底边在舌侧的等腰三角形骨块，将颏部骨块内旋，在唇侧表面以微型钛板固定。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。