无管的

Referring to Bessel function,a calculation equation of temperature distribution in the surface and heat-flow density of wax deposit layer in the laminar flow is deduced,as well as temperature distribution inside.

通过对试验环道上测试段相关数据的测试，对比分析测试段管壁有沉积物和无沉积物时测试段管壁内温度分布的不同表达式，根据能量方程建立了无量纲温度分布方程，利用贝赛尔函数推导出原油在层流状态下沉积层表面温度分布、沉积层热流密度、油流温度分布等相关温度场的计算公式，为研究蜡沉积规律，定性分析管路结蜡层厚度和制定合理的清管方案奠定了理论基础。

Analysis compared with different expression of temperature distribution on deposition and non-deposition in the tested inside-wall of pipeline,a nondimensional temperature function was founded to get a conclusion according to energy equation.Referring to Bessel function,a calculation equation of temperature distribution in the surface and heat-flow density of wax deposit layer in the laminar flow is deduced,as well as temperature distribution inside.This method provides a theoretic basis on the theory law o...

通过对试验环道上测试段相关数据的测试，对比分析测试段管壁有沉积物和无沉积物时测试段管壁内温度分布的不同表达式，根据能量方程建立了无量纲温度分布方程，利用贝赛尔函数推导出原油在层流状态下沉积层表面温度分布、沉积层热流密度、油流温度分布等相关温度场的计算公式，为研究蜡沉积规律，定性分析管路结蜡层厚度和制定合理的清管方案奠定了理论基础。

The main production and the fire extinguishers matching accessories: dry powder dusting of assembly, dioxane high-pressure nozzle assembly, dioxane elbow assembly, was clean asbestos, insurance sales, iron leather, Qian Feng, a peg, and Kind of screw joints, all kinds of rubber seals, etc..

主要生产与灭火器配套的消防配件：干粉喷粉管总成，二氧高压喷管总成，二氧弯管总成，无尘石棉被，保险销，铁皮套，铅封，挂具，及各种螺丝接头，各种橡胶密封圈等。

To study the cytopathogenic effect of mycoplasma membrane.the pro- toplasmic membrane of the mycoplasma causing swine enzootic pneumo- nia was prepared by the repeated Freeze-thaw method or the osmotic shock method,and was then inoculated into the rabbit kidney primary tissue cultures for examining their biological activities.The experimental results were as follows:in the cultures inoculated with 25～50μg of membrane protein ,the cytopathogenic effect was considerable.in the cul- tures inoculated with ...

用低渗解体及反复冻融裂解的方法，制备了猪喘气病病原霉形体膜，将所制备的膜制品接种兔肾原代单层细胞，作生物学活性观察，在接种量按蛋白含量计算为25～50微克膜蛋白的细胞管中观察致细胞病变作用，在接种17.5微克膜蛋白的细胞管中作用不明显，接种6微克膜蛋白的细胞管无致细胞病变作用。

Capillary imbibition oil displacement as an important factor should be analyzed emphatically in the fractured oil reservoir with low permeability.

文章利用量纲分析方法研究了考虑毛管压力的一维非混相驱替过程，得到了毛管压力的无因次表达式，分析了驱替过程中毛管压力的影响因素。

The experimental results showed that the diameter of orifice had a great effect on the lower limit of the hung-up regime but not on the upper limit. However, the stagnant height in hopper, the angle of hopper, the length and diameter of standpipe had influence on the upper limit but not the lower limit.

实验结果表明：立管底部孔口大小对于悬料区的下限有影响，而对上限无影响；相反，漏斗中的物料高度、漏斗的锥度、立管长度和立管直径对悬料区的操作有很大影响。

The Immunohistochemical results indicated that the pI〓 is obviously located on the liminal surface membrane of the distal tubules and Henle's ascending limbs, and can also be found at Henle's loop of porcine kidneys, these segments expose in non-isotonic condition.

免疫组织化学染色显示，pI〓在猪肾脏明显定位于非等渗区域的远曲小管和髓袢升支粗段的管腔表面膜及髓袢处，而等渗区域的近曲小管细胞几乎无pI〓的存在，据此认为pI〓可能在耐受渗透压的变化上发挥作用。

We also discussed the signal characteristics of each kind of tumors.MRI has ben showing great advantage in evaluating the tumors of the spinal canal:nonionizing radiation. noninvasive, no bony artifacts, multiple planes imaging, there is no need to inject agents to the canal, and one image can demonstrate multiple lesions.

MRI在评价椎管肿瘤方面显示出世大的优越性：无电离辐射、无创伤性、无骨伪影、多平面成像、不需椎管内注入造影剂、多发病变一次成像，直接显示肿瘤信号及其与周围结构的关系，定位及定性准确率高。

The method of internal fixation by lateral neck of vertebra and bone graft between processus transversus can give not only a thorough decompression of the spinal canal but also a one-time reconstruction of spinal stability,with a good effect in the early and intermediate follow-ups.So it is a satisfactory method in the grass-roots hospitals for the treatment of lumbar disc herniation.

结论保守和手术治疗对腰椎间盘突出症均具有良好的治疗效果，保守治疗基本无创，无并发症，安全，无痛苦，费用低；而采用后路椎弓根内固定系统结合横突间植骨术，既能够对椎管做到彻底减压，又能一次性重建腰椎稳定性，中、早期随访效果良好，是基层医院治疗腰椎间盘突出症较满意的治疗方法。

Experiments and researches show that the radial heat pipe is of a well-isotheral performence, satisfied heat power conductivity and high heat transfer limit(with the comparison of the unit with and without wick).

通过试验和研究表明：径向热管作为传热管具有良好的等温性、功率传输性能和较高的传热极限，并比较有、无吸液芯的性能差别，径向热管换热器已广泛用于硫磺制酸余热回收装置省煤器。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐