中心

The Winklhofer method is an exact method.But Winklhofer method cannot calculate centerdistance of a roller chain drive whose length of chain is an odd number of chain pitches.Involute function method is anapproximative method.

W ink lhofer方法是准确的计算方法，但只能用于链条总长是链节的偶数倍时的链传动，而渐开线法是近似法，不能精确地计算链传动中心距；而二分法是一种数值法，它可精确地计算链传动中心距，并且适用于链条总长是任意值的链传动，可计算出链传动中心距最大值和最小值。

Center has been officially recognized the first group of countries engaged in quality management system (ISO9000), Environmental Management System (ISO14000), Occupational Health and Safety Management System (GB/T28001) and food safety management system certification audit activities, the center can take integrated approach to achieve the first certification audit certificate issued by the effects of multiple systems and have the training OIA and National Register of the Great Wall auditor certification training center.

中心已被国家第一批正式认可从事质量管理体系(ISO9000)、环境管理体系(ISO14000)、职业健康安全管理体系(GB／T28001)和食品安全管理体系的认证审核活动，中心可采取整合认证的方式达到一次审核颁发多个体系证书的效果，并具有培训内审员和国家注册审核员的长城认证培训中心。

The system we selected is the positive donor ion located in the centers of GaAslGaAsAl quantum well (doped density of Al is 0.33) in the process of calculation. We take the center of well as the origin of coordinates. We noticed that the electron"s effective mass is different in the well and in the barrier, but didn"t pay attention to the mismatch of the dielectric constant.

在计算过程中，我们选取的体系是0中心的正施主离子处于 GaAS／GaAsAI（其中以的搀杂浓度为 0.3 3）量于阶中心，把量子阶中心选作坐标原点，考虑了在阶中和垒中电子的有效质量的不同，但没有考虑在阶中和垒中介电常数的失配性。

Roland, who heads the Clinical Center for Auditory, estibular and Facial Nere Disorders at UT Southwestern and who is also chief of pediatric otology at Children's Medical Center Dallas.

Roland教授是是德州大学西南医学中心耳、前庭、面神经临床研究中心的**，也是达拉斯儿科医学研究中心小儿耳科主任。

The Gaomi Sports Center is located in southeast of the Gaomi Administration Center, including palaestra, gymnasium, swimming pool, sports school ,outdoor playground and square,etc. The purpose of the plan is to make the sports center be one of the marks of Gaomi city, and reach set standards in order to hold province'level sports competitions and national-level monomial competitions.

该高密体育中心位于高密行政中心东南侧，包括体育场、体育馆、游泳馆、体校、室外运动场地、广场等，规划的目标是使该体育中心成为高密市的标志之一，达到承办省级综合体育赛事、国家级单项体育赛事的标准。

Domestic large enterprises have built a first-class Technology Center is a national model CAD application engineering units, equipped with scientific and technical information, standards, structure, hydraulic, transmission, electrical and many other professional researchers, with senior professional titles 33 personnel, intermediate professional 404 titles of staff and a number of national patent technology, QY300, QY130H truck crane, QUY200 crawler crane on behalf of the domestic large-tonnage mobile crane the most cutting-edge technology research and development capacity and production levels, filled a number of national mobile crane technology gaps ; have a plate pre-processing, CNC plasma cutting, pentahedral processing center, the Russian landing boring, welding robot and so on more than 2000 sets of equipment, excellent manufacturing processing capacity, improve, reaching the advanced international level; has passed ISO9000 Quality Certification Center of China Quality system certification, access to American FMRC Company Registration Certificate of ISO9001, the leading product of three varieties of four won the national silver, truck crane for 15 years, was named the "National Customer Satisfaction Product", in which truck crane QY16 was the "National Consumer Trustworthy Gold China-made cars,"with the industry's only"°"products.

建有国内大型企业一流的技术中心，是国家CAD应用工程示范单位，设有科技信息、标准、结构、液压、传动、电气等多项专业研究，拥有高级专业技术职称人员33名、中级专业技术职称人员404名及多项国家专利技术，QY300、QY130H汽车起重机、QUY200履带吊代表了国内大吨位移动式起重机最前沿的技术研发能力和生产制造水平，填补了国家移动式起重机多项技术空白；拥有板材预处理、数控等离子切割、五面体加工中心、俄罗斯落地镗、焊接机器人等2000多台套设备，制造加工能力优良、完善，达到国际先进水平；已通过中国质量认证中心ISO9000质量体系认证，获得美国FMRC公司ISO9001注册资格证书，主导产品三个品种四次荣获国家银质奖，汽车起重机连续15年被评为"全国用户满意产品"，其中QY16汽车起重机获"全国消费者信得过国产车金奖"，为同行业唯一"金榜题名"产品。

Prof. Chan is a Professor in the Department of Medicine and Therapeutics at the Chinese University of Hong Kong and a Consultant Physician and Clinical Pharmacologist in the Prince of Wales Hospital, Hong Kong.

陈教授是香港中文大学内科及药物治疗学系教授，香港威尔士王子医院顾问内科医师和临床药理学家，香港中文大学医学系食品与药物安全中心主任，香港中文大学药物研发中心和食品研究中心的重要成员。

Energy transfer between these two centers would result in appearance of long lasting phosphorescence.

而整个过程主要涉及两个中心，即发光中心和陷阱中心，它们之间的能量传递是产生余辉发光的主要原因。

Designing center of TZCE is a provincial technology center which honored construction achievement in Shanxi province. It is also the provincial industrial base of "cone-type piercer" and "retained continuous rolling equipment".

公司技术中心是山西省省级企业技术中心，荣获山西省"十五"技术中心建设成就奖，是省市政府有关部门认定的"锥形辊穿孔机产业化基地"和"限动连轧设备产业化基地"。

Domestic and international large-scale enterprise group, general headquarters, regional general headquarters, research and development centre, marketing centre, gather to above-mentioned in the center that metropolis enclose constantly of trans-corporation, Accelerate coastal cities paces of internationalization , become various kinds of resource, key element in two market pivot that butt joint blend.

国内外大型企业集团，跨国公司的总部、地区总部、研发中心与营销中心、将不断向上述大都市圈的中心汇集，加快沿海城市国际化的步伐，成为各种资源、要素在两个市场对接交融的枢纽。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。