中心圆

It emphatically introduces the defination method about the workpiece center height of centerless machine, and it has use for reference in improving the quality problem of the roundness of bearing in the process of centerless grinder.

着重介绍了无心磨床工件中心高的确定方法，对如何提高无心磨加工过程中的圆度质量问题具有一定借鉴意义。

During the mounting, the compinents unfurl them to retrieve circularity. The thesis will elaborate the programming method in how to use NUM System′N/C Center to machine and have process analyses on them with high precision on condition that the big locating hole and the 3-25H7 cylindriform ...

在没有将变形的定位大孔及3-25H7圆柱定位销孔分布圆恢复成圆形的情况下，在NUM系统的加工中心加工，对其进行的工艺分析和保证高加工精度的编程方法。

However, significant differences in ADC in different diffusion gradients were found within normal human brain parenchyma, which including caudate nucleus, lentiform nucleus, centrum semiovale, posterior limb of internal capsule, and corpus callosum, except the thalamus.

而除丘脑外的正常脑灰质团块及白质（半卵圆中心、内囊后肢、胼胝体膝部和压部）的ADC值在不同扩散梯度方向上存在显著性差异（P≤0.05）。

Leaf blade lorate to lorate-oblanceolate; stigma not strongly convex centrally, margin (4 or)6-crenate

叶片带状倒披针形到带状；中心不强烈凸的柱头，边缘4或6具圆齿 48 ASPIDISTRA minutiflora 小花蜘蛛抱蛋

The myelinization of cerebellar white matter,middle cerebellar peduncles,anterior limb of internal capsule,splenium and genu of corpus callosum,centrum semiovale,the white matter in parietal-occipital area and frontal-temporal area were documented at birth to 5,2～4,3～7,3～5,4～7,2～7,3～9 and 4～12 months old,respectively.

髓鞘形成至成熟时间：小脑上下脚、桥脑背侧、丘脑腹外侧和内囊后肢后部出生时已成熟，小脑自出生至5个月，小脑中脚2～4个月，内囊前肢3～7个月，胼胝体后部、膝部分别是3～5个月、4～7个月，半卵圆中心2～7个月，枕顶叶白质3～9个月，额颞叶白质4～12个月。

Cases 1-5 who presented with spastic paraparesis and other prominent upper motor neurone signs showed high signal on T1-weighted images in the centrum semiovale, corona radiata and posterior limb of the internal capsule which corresponded to the large myelinated fibres of the corticospinal tract Fig.

病例1~5患者表现为下肢痉挛性轻瘫和其他一些明显的上运动神经元症状体征，在T1像上于半卵圆中心、放射冠、内囊后肢处的皮质脊髓束大有髓纤维走行区均可见高信号病灶（图1），在T2、PdWI像上也可见自放射冠延伸至大脑脚的高信号病灶。

Mastoid foramen often locate posterosuperior quadrant. In order to understand mastoid emissary is communicating branch between internal and extracranial vein, blood cast form was woked.

作者自己设计的骨窗是经外耳道下极水平向后4.35cm为中心以1.35cm为半径划圆，乳突孔在前上象限居多。

Symmetrical low densi-ty shadows in the areas of periventricle and/or semioval center were the main finding.

CT表现为两侧基本对称的侧脑室周围和半卵圆中心区域的密度减低。

Methods 26 MS patients and 16 normal volunteers were examined by Multiple- voxel MRS on semioval center and whole brain DTI.

26例MS患者和16例性别、年龄相匹配的正常志愿者均进行半卵圆中心层面的多体素MRS扫描和全脑的DTI扫描。

Results (1) Of 19 cases, 7 showed confluent foci within periventricular white matter and centrum semioval, presenting as massive symmetrically-distributed lesions with long T 1 and long T 2 signal.

结果 (1)脑白质异常信号 7例，主要分布于侧脑室旁的脑白质及半卵圆中心，为大片状长T1、长T2 信号，呈对称分布。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。