The paper puts great emphasis on studying the mechanical performance and the carrying capacity of concrete - filled steel tubular ( cfst ) , verifies the cyclo - hoop effect which steel tubular has exert to the concrete in cfst through the tridimensional finite element analysis of the entity of the arch rib , and proves that the cyclo - hoop effect is utilized to increase the axial compression cfst member carrying capacity 本文着重研究了钢管混凝土结构的力学性能及承载能力，通过对拱肋实体所作的三维有限元分析，验证了钢管混凝土拱桥中钢管对混凝土的环箍效应，证明了由于环箍效应的存在，使内填式钢管混凝土轴压承载力大大提高。
The second part of this article mainly states the constituents and characters of high school ' s education on literature . it points out that the literature education consists of three facters including teachers , students and teaching activities . its process of operation included the back cyclo - sum reciprocating of teachers and students , of teachers and literature , of students and literature . it has the character that is the unity of experience and recognition , the unity of transgress and utility , the unity of doing by himself and by others 第二部分着重阐述了中学文学教育的构成与特征。指出：中学文学教育是由教师、学生与文学活动三要素构成的，其运作过程包括教师与学生、教师与文学、学生与文学三对回环往复关系；中学文学教育具有体验与认识统一、超越与功利统一、自为与他为统一的特征。第三部分主要论述了中学文学教育的价值与功能。
Analyse the tooth geometry of klingelnberg cyclo - palloid spiral bevel gear . , according to the relative position and kinematic relation of the cutter heads , virtual crown gear and the processed wheel blank , established the system of coordinates of the gear cutting , dedcuced the tooth face equation of the virtual crown gear , according to relations of the gear cutting and space theory of engagement , deduced the tooth face equation of klingelnberg cyclo - palloid spiral bevel gear , and drawing the three - dimensional graphs of the virutal crown gear and klingelnberg cyclo - palloid spiral bevel gear according to the design and setting parameters 对克林贝格摆线齿锥齿轮进行齿面几何分析。根据铣齿加工中刀盘、摇台和轮坯的相对位置和相对运动关系建立了切齿啮合坐标系,由矢量的旋转推导了产形轮齿面方程;根据空间啮合原理和切齿啮合关系推导了被加工齿轮的齿面方程;由设计参数和铣齿调整参数计算得到齿面离散数据,绘制了产形轮和摆线齿锥齿轮的三维齿形。
Analyse the klingelnberg amk855 gear milling machine . through analyse the transmission chain of the gear milling machine , analyse the transmitting principle and manufacture principle , introduce the two - - part cutter head , the process of formation of extended epicycloide and inaginary crown gear cutting principle ; overall introduce the formation of tooth face , deduce the calculation formulas of the main setting parameter of gear milling machine , and proving the correctness of the setting calculation formulas by the program of ‘ calculating of klingelnberg cyclo - palloid spiral bevel gear milling setting parameter ’ 通过剖析该机床的传动链,分析了其运动原理和加工原理;介绍了双层万能刀盘、延伸外摆线的形成过程和假想平面产形轮切齿理论;全面介绍了齿面的形成方法,推导了铣齿机主要的调整参数的计算公式,并用“ klingelnberg摆线齿锥齿轮铣齿调整参数计算”的程序验证了推导的公式的正确性。
In view of the main causes of the concentrate pollution formation in fine particle flotation and the characteristics of coal slurry flotation , the mechanism of the micro - bubble cyclo - flotation columm is analyzed which includes its comprehensive utilization of micro - bubble flotation , counter - current flotation and in tensification of centrifugal field by cycloning . its structure , characteristics and industrial application effect are presented 针对细粒浮选中精矿污染形成的主要原因及煤泥浮选特点，主要分析了旋流微泡浮选柱综合利用微泡浮选、逆流浮选、旋流离心力场强化分选的机理，并介绍了旋流微泡浮选柱的结构、特点及工业应用的效果。
