查询词典 B-complex

The four single errors exist in joint B in crank.rocker mechanism. The result indicates that the theory analysis is correct. In order to analyze the distribution of contact stress in joints, the ANSYS finite element tool is used. The situation of four single errors in joint B is analyzed. The distribution of contact stress is actually reflected. The microcosmic stress analysis is referred.

为了分析铰链在存在形位误差的情形下铰链中接触应力的分布情况，利用ANSYS有限元分析工具，通过对B铰链存在的四种可能出现的形位误差造成在装配过程中产生的接触应力的分析，真实的反映了铰链接触应力的分布情况，从而由宏观的力分析进入微观的应力分析，这也是前人没有涉及过的。

One is based on the B-spline fitting to the contours;the other computes the curvature directly taking advantage of the relation of curvature and osculating circle.

一是基于轮廓的B样条拟合，通过计算拟合B样条曲线在各采样点处的曲率估算轮廓点的曲率

And I followed a simple strategy: to outwork my opponents, do my job, and continue to preach new ideas, including college scholarships for all high school students with a B average or better; and a plant the future initiative to plant ten million more trees a year for a decade to do our part to reduce greenhouse gases and global warming.

我则采取了一套简单的策略：比我的对手的工作更努力，做好我的本职工作，继续宣扬新的理念，包括向成绩为B及B以上的高中学生提供大学奖学金，提交一个"为未来植树"的提案，用十年时间，每年再种植一千万棵树，为减少温室效应产生的气体和减缓全球气候变暖，尽我们的努力。

Furthermore, we believe that the general rules for understanding the superstructures formed within boundary areas are correlated directly with different overlapping or connecting operation with respect to building units of flattened hexagons and P-B polygons. These rules are as following:I The adjoined domains at least have their basic structural units a side-shared (that is, sharing two column clustersП) The basic structural units in both domains have overlapping area as large as possible.3 For theξ-Al-Ni-Rh phase formed in the as-cast Al75Ni15Rh10 alloy, phase transition processes induced by electron beam irradiation with different amount of dose were studied by in-situ observations in an electron microscope.

本论文提出了畴界的通用模型：各种畴界及其畴界处超结构都可以用一个通用的叠加覆盖模型去表示，覆盖的基本单元为扁六边形或P-B多边形，连接与覆盖规则如下：I相邻畴中的基本单元至少有一个共用边相邻畴中的基本单元重叠时沿b方向有最大重叠面积。3研究了Al75Ni15Rh10合金中ξ-Al-Ni-Rh相在透射电镜电镜中经不同剂量电子束辐照后引起的辐照损伤和相变过程。

By the analysis and study of a special kind of overthrust fault occurred in the lower layer B 2 of B coal group in Furong Mine,a new method for quantitative prediction,the method of elevation difference value of relative bed interval,is presented.

通过对芙蓉煤矿B煤组下分层B2煤层中出现的一种特殊逆掩断层的分析和研究，提出了一种新的定量预测预报方法——相对层间距高差值法。

Producing PHAs,and then were orientationally inserted into a prokaryotic expression vector pBV220. By analyzing the bioactibity and function of their products, the biological function of phaA, phaB and phaC was confirmed. These have been done in our laboratory. To make better use of the three genes by plant bioreactor, two groups of different plant expression vectors that can be used to produce PHAs in different plants were constructed, and the transformation of PHA in Oxalis triangnlaris has been preliminarily reseached.The following is the main results:Three plant expression vectors pBI121-A,pBI121-B and ubquiting-C, which can be used to be transformed into Oxalis triangularis were respectively constructed by using the phaA, phaB and phaC.

菌株的亚克隆基因组片段中，分离出phaA、phaB和phaC三个基因片段，定向克隆至原核表达载体pBV220，通过对其生物活性与功能分析，确证了基因phaA、phaB和phaC的生物学功能；为了通过植物生物反应器对这三个基因进一步研究利用，本实验利用这三个基因构建了两组可用于不同植物生产PHA的真核表达载体，并对紫叶酢浆草进行PHA基因遗传转化的初步研究，获得主要结果如下：利用克隆的phaA、phaB、phaC三个基因分别构建了可用于转化紫叶酢浆草表达载体pBI121-A、pBI121-B、uBquiting-C；可用于玉米转化的种子特异性表达载体p7S-A、pBI121-S-B、uBquiting-C。

The Advanced Oxidation Processes of ozonization technique was used in treatment of the acid red B dye wastewater.

目的 研究臭氧氧化技术处理酸性红B染料废水的效果，并探讨O3投加量、废水的初始pH值、H2O2和O3物质的量比对臭氧氧化处理酸性红B染料废水效果的影响。

Objective: To study the role of CD5 + B cells in the pathogenic mechanism of hepatitis B.

摘 要 目的：研究CD5+B细胞在慢性乙型病毒性肝炎发病中的作用。

By employing two kinds of molecular marker of mitochondrial DNA, i. e. Cyt b and CoI gene, the sequences of 15 species representing 6 families from Passeriformes were compared. We analysed their sequences compose and characteristic with the sorft of MEG3.1, and built the phylogenetic trees in PAUP~*4.0. We deeply analysed the feasibility that CoI gene qua the marker to research the phylogenetic relationship of Passeriformes, and afford the academic proof for building the DNA barcoding of the birds.

本文分别以线粒体DNA的细胞色素b和CoI基因作为分子标记，对雀形目6科15种鸟类的细胞色素b基因全序列(1，143bp)和CoI基因部分序列(1，176bp)的组成特点及其系统发育树进行了比较分析，还探讨了CoI基因作为雀形目系统发育研究和构建鸟类物种DNA编码库的分子标记的可行性，旨在为DNA编码库的构建积累基础资料。

B deem the ball unplayable at Point B and drop a ball, under an additional penalty of one stroke, at Point A?

认定球在B点不可打，在加罚一杆的情况下从A点抛球吗？

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。