查询词典 T. b.

Though comparing Canny operator and center B spline dyadic wavelet, the following conclusion is proven in this dissertation: a Center B spline function has tight support and Canny operator hasn't. b Center B spline function asymptotic convergence to Gaussian function and the derivative of Center B spline function asymptotic convergence to Canny operator. c The derivative of fourth order center spline B function is more suitable as a optimal edge detector than Canny operator. d Center B spline function can balance the smoothing and approximation of original data, and the fourth center B spline function is the only optimal solution of two order smoothing problem. e The error between the valve of time-frequency uncertainty of the fourth center B spline function and the lower bound of time-frequency uncertainty does not exceed 0.143% of the lower bound. f The derivative of center spline B function can construct a stability dyadic wavelet and can give a fast algorithm for multiscale edge detection, but Canny operator can do neither.

作者给出了Canny算子与中心B样条二进小波严格的比较证明，得出如下结论：a中心B样条函数具有紧支集，Canny算子不具有紧支集。b中心B样条函数的极限收敛于高斯函数，中心B样条函数的导数收敛于Canny算子。c四阶中心B样条函数的导数比Canny算子更接近最佳边缘检测滤波器。d中心B样条函数比高斯函数更能兼顾对原函数平滑和逼近的折中要求，并且四阶中心B样条函数是二阶逼近问题的唯一最优解。e四阶中心B样条函数的时频测不准关系值与时频测不准关系下界的逼近误差不超过0.143％。f中心B样条函数的导数可以构成稳定的二进小波，存在快速的多尺度算法；而Canny算子不构成稳定的二进小波，无法给出快速的多尺度算法。

No, we don't B: In that case ,we'd like cash on receipt of invoice .

没有。 B：这样的话，您在收到帐单时请付现。

The following methods were used in the study, such as viral inoculation of animal, pathological method, flow cytometry, RT-PCR, in situ hybridization, immunohistochemistry and terminal deoxy nucleotidyl transferase mediated dUTP nick end labling . Morphological changes of the infected chickling, dynamic changes of T, B cells and T subsets, changes of adhesion molecules on the lymphocyte surface, necrosis and apoptosis of lymphocyte and neurons, changes of MIP-1β and IL-8 producing cells in the brain, cell types of perivascular tuffing in cerebral tissue were systematically studied.

在研究过程中，采用了病毒接种技术、普通病理学研究方法、流式细胞仪技术、RT-PCR技术、原位杂交技术、免疫组化技术、凋亡细胞末端标记技术，系统研究了不同日龄的SPF雏鸡人工感染AEV-NH937株后的病理变化，T和B淋巴细胞、T淋巴细胞亚群的动态变化规律，淋巴细胞表面某些粘附分子的变化，淋巴细胞和神经元的坏死与凋亡，雏鸡脑组织中产生趋化因子MIP-1β和IL-8细胞的变化规律，脑组织中围官性细胞浸润的细胞类型。

The following methods were used in the study, such as viral inoculation of animal, pathological method, flow cytometry, RT-PCR, in situ hybridization, immunohistochemistry and terminal deoxy nucleotidyl transferase mediated dUTP nick end labling. Morphological changes of the infected chickling, dynamic changes of T, B cells and T subsets, changes of adhesion molecules on the lymphocyte surface, necrosis and apoptosis of lymphocyte and neurons, changes of MIP-1β and IL-8 producing cells in the brain, cell types of perivascular tuffing in cerebral tissue were systematically studied. The key research results were.(1)The average percentage of CD19+cell in blood, bursa and spleen, after 3, 5 days of inoculation, was significantly Phybridization revealed that the number of IL-8 and MIP-1βproducing cells was increased in the infected brain.

在研究过程中，采用了病毒接种技术、普通病理学研究方法、流式细胞仪技术、RT-PCR技术、原位杂交技术、免疫组化技术、凋亡细胞末端标记技术，系统研究了不同日龄的SPF雏鸡人工感染AEV-NH937株后的病理变化，T和B淋巴细胞、T淋巴细胞亚群的动态变化规律，淋巴细胞表面某些粘附分子的变化，淋巴细胞和神经元的坏死与凋亡，雏鸡脑组织中产生趋化因子MIP-1β和IL-8细胞的变化规律，脑组织中围官性细胞浸润的细胞类型。

We tested the mononuclear phagocyte englobement function, serum haemolysin, delayed hypersensitivity, interlukine-1, 2(IL-1, 2) activity and T, B lymphocyte proliferating function.

测定小鼠单核巨噬细胞吞噬功能、血清半数溶血素值、迟发型变态反应、T淋巴细胞及B淋巴细胞增殖能力、白介素－1(IL-1)及白介素-2(IL-2)活性。

Objective To investigate the effects of dendritic cells and T, B lymphocytes and plasmacytes in the generation of Graves' Disease and Hashimoto's Thyroiditis.

目的 探讨树突状细胞、T、B淋巴细胞和浆细胞等免疫活性细胞在Graves病和桥本甲状腺炎发病中的作用。

Using this scheme, we successfully produced a triple recessive line for genes ch, nlw (non-lepis wing) and b-t on the 13th linkage group and a double recessive line for genes nb and ki-2 (kidney-shaped egg 2) on the 19th linkage group of Bombyx mori.

采用所设计的方案，成功培育了家蚕第13连锁群的赤蚁、无鳞毛翅和褐色卵t (b-t，母性影响遗传)的三隐性系统，并培育了第19连锁群的狭胸和第二肾形卵(ki-2，母性影响遗传，待定位突变基因)的双隐性系统。

Extant jawless vertebrates, represented by lampreys and hagfishes, have innate immune receptors with variable domains structurally resembling T/B-cell receptors. However, they lack cardinal elements of adaptive immunity shared by all jawed vertebrates: T/B-cell receptors and major histocompatibility complex molecules.

在以七鳃鳗和盲鳗为代表的无颌类脊椎动物中，虽然发现了与有颌类脊椎动物T细胞受体(T-cell receptors， TLRs)、B细胞受体(B-cell receptors， BCRs)可变区具有相似结构的先天性免疫受体，却从未发现有颌类脊椎动物适应性免疫系统的核心组分：TCRs、BCRs、组织相容性复合体(Major histocompatibility complex， MHC)。

This experiment also show KXP can enhance proliferative ability of the T, B lymphocyte, markedly reinforce the activity of natural killer cell and the phagocytic activity of celiac macrophagocyte, which prove KXPs importance in the antineoplastic immunity.

实验还表明：凯息平口服液能增强荷瘤鼠的T、B淋巴细胞增殖能力；对自然杀伤细胞的活性也有明显的促进作用，同时明显增强腹腔巨噬细胞的吞噬活性，显示了其在抗肿瘤免疫中具有重要的作用。

The experiment lasted for 3 weeks with 4 mice killed every week. The ratio changes of T, B lymphocyte were tested by using the acid α-naphthyl acetate esterase test.

实验分3周进行，每组每周各杀4只，采用酸性α-醋酸萘酯酶方法检测T、B淋巴细胞的动态比值变化。

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。