查询词典 T. b.

The theory of accretion disks are important for many astrophysical phenomena, including Quasars, active galatic nucleic, X-ray binary stars, and young stellar objects. The most important branch of accretion djsk theory is the stability properties of djsks. It is widely considered that the luminosity variations of various astronomical objects are associated with the instability of accretion disk. The viscosity plays an important role in the accretion disk theory, and magnetic field exists commonly in astronomical phenomena. A more realistic analysis of the stabihty of the accretion disk should include both the radjal and azimuthal perturbations because of the strong shear of viscous flow.In this paper, according to the luminosity Variations of Various astronomical objects, we study the radial-azimuthal instability of an isothermal with magnetic field. We find that the radial and azimuthal fields B〓,B〓 are mainly responsible for enhancing the instability of the magneto-acoustic modes and non-axisymmetric modes,and that pulsational oscillations are larger in the radial than in the Z direction. The model may be useful in explaining the periodic light variation of FU orionis and. T Tauri stars.

在许多天体物理现象中，例如活动星系核，X-射线双星和年青的恒星理论中，吸积盘理论起着重要的作用，而吸积盘理论中的一个重要分支是吸积盘的不稳定性理论，普遍认为活动天体的周期，准周期光变现象与吸积盘的不稳定性有关，在吸积盘理论中，粘滞起着重要的作用，而磁场是天体物理中普遍存在的现象，对于几何薄吸积盘不稳定性分析，由于强剪切流的缘故，应该包括径向和环向扰动两个方面，本文结合天体物理中的各种周期，准周期光变现象，研究了含磁场的等温薄吸积盘的径向-环向振荡不稳定性，结果表明：磁场的径向和环向分量对磁声模和非轴对称模的不稳定性的增加起着主要的作用，且径向振荡大于轴向振荡，所得结果有利于解释FU Orionis和T Tauri Stars的周期光变现象。

Methods Resazurin and MTT assay were used to detect the effects of scorpion tegument water-soluble protein, scorpion tegument keratin protein and STP component Ⅱ on the transformation of T and B lymphocytes, and NK cell activity in normal mice.

采用刃天青和MTT法检测蝎皮水溶性总蛋白、总角蛋白及水溶性蛋白组分Ⅱ对正常小鼠T、B淋巴细胞转化、NK细胞杀伤活性的作用。

Don't be tellin' people what they can and can't get into b****.

不要被tellin '的人，他们可以和不可以进入b ****。

Our annual production ASGA368 Series Sizing Machine, ASLGA366 Series United pulp dyeing machine, SGA129-A / B high-speed batch warper ,1459-A parallel compression Large warper, 1452G / T ping-type pressurized Warping machines, pre-shrinking Singeing drying equipment, high temperature and high pressure and two-speed transfer slurry barrels, and other series by the beam.

我公司常年生产ASGA368系列浆纱机、ASLGA366系列浆染联合机、SGA129-A/B高速分批整经机、1459-A平行加压大卷整经机、1452G/T平型加压整经机、烧毛预缩烘干设备、高温高压和双速调浆桶、系列经织轴等。

Key Laboratory of Veterinary Parasitology of Gansu Province/State Key Laboratory of Veterinary Etiological Biology/Lanzhou Veterinary Research Institute,Chinese Academy of Agricultural Sciences,Lanzhou 730046, China）Abstract: With cDNA from salivary gland of semi-engorged adult female Boophilus microplus as tester and cDNA from starved adult female B.microplus as driver,a subtractive cDNA library of salivary gland of female B.microplus was constructed using suppression subtractive hybridization and T/A cloning.

以我国微小牛蜱半饱血雌性成蜱唾液腺cDNA为检测子Tester，饥饿雌性成蜱cDNA为驱动子，采用抑制消减杂交技术和T/A克隆技术构建了微小牛蜱半饱血雌性成蜱唾液腺消减cDNA文库。

MethodsThe frequency of CD4+CD25+T cells in the peripheral blood mononuclear cells from 30 cases of severe hepatitis B, 20 cases of chronic hepatitis B, 20 cases of chronic asymptomatic HBV carriers and 10 healthy controls were determined by flow cytometry and their serum HBV DNA levels were detected by Quantitative Fluorogenic PCR.

方法采用流式细胞仪检测30例重型乙型肝炎患者、20例慢性乙型肝炎患者、20例无症状乙肝病毒携带者和10例健康的外周血CD4+CD25+调节性T细胞（CD4+CD25+Treg）的水平，并应用荧光定量PCR方法测定上述研究对象血中HBV DNA滴度。

Objective To study the histopathologic features,prognosis and diagnostic significance of immunohistochemistry in T-cell-rich B-cell lymphoma.

目的 探讨富于T细胞的大B细胞淋巴瘤的病理形态、预后和免疫组化的诊断意义。

Immunorelated pancytopenia or hemocytopenia is a kind of disease with a relative clear pathological mechanism which was separated from bone marrow failure disease.It was thought to be caused by unbalance of T lymphocyte regulation and abnormal of B lymphocyte mount,subgroup,and function,which result in production of autoantibodies destroying or suppressing the inmature bone marrow hematopoietic cell and peripheral hypocytosis.

免疫相关性全血细胞减少或血细胞减少症是从骨髓衰竭性疾病中分离出的一种病理机制相对清晰的独立疾病体系，是由于T淋巴细胞调控失衡导致B淋巴细胞数量、亚群、功能异常，进而产生抗骨髓未成熟造血细胞自身抗体并破坏或抑制之，最终导致外周血细胞减少的一类疾病。

Microscopic examination revealed preservation of the architecture of the testicular parenchyma, typically with hemorrhage and edema, with patchy inflammation in the form of a lymphohistiocytic infiltrate within seminiferous tubules and also between tubules. The intratubular infiltrate usually predominated. Immunohistochemical studies, performed in 7 cases showed a mixture of CD68+ histiocytes and CD3+ T cells, with few B cells (CD20+) and few granulocytes.

显微镜下，病变保留了睾丸实质的结构，出血、水肿显著，淋巴细胞和组织细胞组成的炎细胞斑片状浸润至曲细精管内和管间，而以管内更为显著。7例做了免疫组化，显示炎细胞由CD68阳性的组织细胞和CD3阳性的T细胞混合而成，B细胞（CD20+）和粒细胞罕见。

In recent years,studies have revealed important roles of BAFF and its receptors in immune regulation of antibody isotype switching,germinal center maintenance,and T cell co-stimulation,that may provide new drugs in the future for the treatment of autoimmune disorders,lymphoma and B cell immunodeficiencies.

近几年来的研究表明，BAFF及其受体在抗体类型转换、生发中心维持、T细胞共刺激等方面发挥着重要的免疫调节作用，对自身免疫疾病、淋巴瘤和B细胞免疫缺陷的治疗具有潜在的应用前景。

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。