单型

Single-point diamond-turning is used in finishing transmissive optics and mirrors in a variety of metals and IR materials.

在加工由多种金属和红外材料制成的透射型和反射型光学镜面时，将会用到我们拥有的单点金刚石切削设备。

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。

Haplotype II and III are shown the type of yellow cattle, and Haplotype I is shown in that of zebu cattle. In Japanese black cattle, only one of these restriction endonucleases, HindIII, was found to be polymorphisms.

日本和牛相应的11种内切酶分析中只有1种酶的酶切类型存在多态，共出现34个酶切位点，13种限制性态型，归结为2种线粒体DNA单倍型。

Conclution: Diester aconitum alkaloid can be changed to monoester aconitum and aconine alkaloids. Under the controled condition benzoylaconine is a major hydrolysis products.

双酯型的乌头碱可水解转化为单酯型乌头碱和乌头原碱；在控制条件下，苯甲酰乌头原碱为主要水解产物。

Methods With the method of finite element analysis, the model was set up according to the adductive femoral neck fracture and the biomechanical features of the different angle fixations with three screws in an inverted triangular configuration were compared.

以内收型股骨颈骨折为研究对象建立有限元模型，模拟单腿站立时的受载和垂直力加载2种情况，对倒三角构型不同角度置钉技术分别进行有限元计算。

Mirror telescopes of Newtonian, Cassegrain and Schmidt designs included models up to 1.25 meter aperture in single, or double or even triple configurations for astrographic applications.

还生产牛顿型、卡塞格伦型和施密特型镜面反射望远镜，包括物镜口径达到了1.25米的单筒的、双目的和&三眼&的型号，供专业天文定位使用。

It isconfirmed by ~1H NMR,~(13)C NMR and X-ray crystallographic analysis that complexes 60-63are monopyridine complexes and show distorted square pyramid geometries; complexes 64and 65 are bispyridine complexes and show pseudo-octahedral geometries, where twopyridine ligands are in cis arrangement and trans to the NHC and the benzylidene ligandrespectively, the bond length between ruthenium and pyridine ligand trans to the benzylideneligand is 16 pm longer than the bond length between ruthenium and pyridine ligand trans tothe NHC ligand.

1H NMR、~(13)C NMR及X射线单晶衍射分析证明，配合物60-63是单吡啶衍生物配位的钌卡宾配合物，具有变形的四方锥构型；配合物64、65为双吡啶衍生物配位的钌卡宾配合物，具有变形的八面体构型，其中两个顺式配位的吡啶衍生物分别处于氮杂环卡宾和苯亚甲基的反位，处于苯亚甲基反位的吡啶衍生物对应的钌-氮键长要比处于氮杂环卡宾反位的长出16 pm。

Its shunt impedance is three times higher than former single gap bunchers used by TUM and the length of the buncher system is one fifth of former one only because the use of λ/4 coaxial cavities with double gaps.

由于采用了双间隙型λ/4同轴腔结构，分路阻抗是慕尼黑以前所用的单间隙型的4倍，而聚束系统占用的束线长度缩短到20 %。

It is expected that hyg would be integrated stablely into the chromosome along with insert while spc/str would be lost during the second cross-over. Gene replacement through these two flanking sequences will result in the susceptibility of the transformants to phage φHAU3, which provides an enrichment for desired transformants by counterselection.

预期在携带有大插入片段的基因置换YAC分子进入野生型变铅青链霉菌后，YAC分子将通过1.4kb或1.0kb片段与染色体发生同源单交换，继而发生同源双交换，hyg连同大插入片段一起稳定地整合到染色体上，而spc／str丢失，从而导致菌株Hyg〓Str〓的表型。

Result］the total operative effective rate of double-tube diastematomyelia amounted to 86% during a follow-up period of 6 months to 15 years,more significant in patients with pain.the scores of neural function and ptncsep were significantly improved.

结果］双管型脊髓纵裂通过手术后观察和6个月～15年(平均2年6个月)的随访发现，临床神经功能评分及 ptncsep术后有明显改变，尤其是疼痛为主诉的患者恢复最为明显，手术的总有效率可达86%；单管型脊髓纵裂手术前后无明显变化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。