parabola造句

• It was found that , the high - temperature oxidation of ni - fe alloy plating obeys parabola law . furthermore , the rate of oxidation increased with fe wt % and the temperature
  结果表明， ni - fe合金镀层高温氧化服从抛物线规律，氧化速度随着铁含量的增加而增加。
• It comes to a conclusion that the combined parabola acceleration is the optimum one to limit dynamic tension and elastic vibration of large belt conveyors during starting
  提出了采用抛物线组合加速度控制曲线起动是限制大型带式输送机动张力和弹性振动的最佳方案。
• In the 3 soil textures the dynamic change of rhizosphere microorganisms and enzyme activities both turned on a parabola with the peak in the silking stage , and then reducing gradually
  3种土壤玉米根际生物活性的动态变化呈抛物线，吐丝期达最大值，此后逐渐下降。
• In this paper , combined with an engineering example , the calculation procedure and theoretical foundation for the theoretic elongation of post - tensioned steel strand of parabola - shape has been given
  结合一工程实例，阐述了预应力钢绞线理论伸长值的计算过程及理论依据。
• 3 ) some low graphitization degree samples " magnetoresistance is 0 when measure temperature is enough high . 3 ) in low intensity of magnetic field , the curve of / 0 - b is parabola
  建议对碳/碳复合材料磁电阻的测量参数是：温度区间为70 100k ；磁场强度选择区间为1 1 . 2t 。
• The results measured are approaching parabola distribution . 1b sum up , we have already prepared some polymeric micro - lcnses with certain refractive index , which is approacl1ing an idea parabola distribution
  第五章归纳全文，对本课题研究所取得的成绩、存在的问题和下一步要做的工作做一总结和展望。
• On this base , put forward the flow of numerical calculation of the conduits and pump system , and the flow of parabola - insertion algorithm , on which the value of the midst point on the valve - closed curve can be calculated
  在此基础上，给出了管道、泵系统数值计算和阀门关闭曲线的抛物线插值算法的流程。
• The paper researches rectangle , parabola , sinusoid and triangle acceleration curves and their response characteristics , and puts forward a concept of combined acceleration
  摘要研究了输送机的各种加速度（矩形、抛物线形、正弦形和三角形）曲线及其响应特性，在此基础上，提出了组合加速度的概念，并对其进行了研究。
• Then , in order to meet the need of relevant parameter calculating conveniently , basing on the principium of the material mechanics , the cube - parabola method in calculating bending strength parameter number is provided
  同时为适应有关参数数值计算需要，根据材料力学基本原理，提出弯曲强度参数计算中的立方抛物线法。
• The result of the study shows that the stress in soil nails along the length direction display parabola distribution , and the actual pull force in soil nails about half of the value is gained by theoretical calculation
  研究结果表明，土钉受力沿土钉长度方向呈抛物线形分布，土钉实际所受拉力仅为理论计算值的1 / 2左右。
• The trajectory planning is in the joint space . by simulation of the polynomial interpolation and the parabola interpolation , the former is chosen , which is a part of off - line programming
  关节空间的轨迹规划，选择多项式插值，通过仿真证明该多项式插值方法比抛物线插值方法更适用于解决该问题，方便机器人的离线编程。
• It offered a explanation and quantificational data of practice and academic research of that flanging with cone - shaped or global punch or parabola - shaped punch can lessen flanging force and reduce flanging limit coefficient
  为锥形、球形、抛物线形冲头的翻边能减少翻边力、降低极限翻边系数的实践与理论认识，提供了一种解释与定量数据。
• The pyrolysis mechan ism functions of the second stage of dvb / hpso and vpso / hpso are both parabola principle , and the rates of pyrolysis reactions in this stage are both controlled by one - dimensional diffusion
  600时， ai可与先驱体裂解产生的含碳小分子气体反应生成a14c3 ， 800时ai可与裂解气氛nz反应生成ain ，温度升高， al的氮化反应不断进行。
• The association between farmer ' s income and ages of householder with different education attainments can be assumed as parabola . as learning by doing for householder , the growth rate of income is higher for householder wi
  首先，采用romer （ 990 ）内生经济增长模型分析农村人力资本对农村经济增长的作用，农村人力资本对农业增加值增长的贡献率为6
• The parabola traces of shot based on goal angles corresponding to different velocity area are outlined schematically , and the relationship between hollow - shot probability and the shot distance , the height of the shot point are decussed
  根据中框投篮角分析了不同投篮速度区间对应的投篮弧线，还对空心中框率和投篮距离及投篮点高度间的关系作了讨论。
• In this paper , two kinds of the aforesaid methods based on the parabola and catenary theories for the datum strand erection of the self - anchored suspension bridge of pingsheng bridge in foshan under non - datum state condition of erection are presented
  介绍基于抛物线理论和基于悬链线理论的平胜大桥基准索股非基准状态下架设垂度修正量的确定方法及达到该垂度的施工控制方法。
• There are some creations in this paper . first , the relationship among the physical property , crystal structure , preparation method and doping content is established to be a parabola equation . the extreme value of this equation determines the optimum doping content
  本论文工作的创新点在于：从半导体发光材料的晶体结构出发，建立起材料的物理性能、晶体结构中原子配位数、最佳掺杂含量和制备方法之间的关系，归纳出材料掺杂的最佳掺杂含量的理论表达式。
• After the comparing the simulation results with the theoretic results under the three followed condition : a point light source on the parabola reflector focus , a point light on the ellipsoid reflector focus and a point light source before the parabola reflector focus , a conclusion is gotten that the two results are generally accordant , the accuracy of the simulation software reach the engineering requirements and the computational simulation software of photometric characteristics of headlamp of motor vehicles can guide the design of the headlamp reflectors
  比较了点光源位于抛物面反射器和椭球面反射器焦点的情况和点光源偏离抛物面焦点的情况下照度的理论计算结果和采用本文的照度仿真计算结果，其仿真计算结果和理论计算结果基本相符，能满足工程上的要求，说明仿真计算软件对前照灯的反射镜的设计具有很好的指导意义。
• On the contrary , his eyes wet with tears , pierre looked joyously at this bright comet , which seemed as though after flying with inconceivable swiftness through infinite space in a parabola , it had suddenly , like an arrow piercing the earth , stuck fast at one chosen spot in the black sky , and stayed there , vigorously tossing up its tail , shining and playing with its white light among the countless other twinkling stars
  与之相反，皮埃尔兴高采烈地睁开他那双被泪水沾湿的眼睛，凝视着这颗明亮的彗星，它仿佛正以非言语所能形容的速度沿着一条抛物线飞过这辽阔的空间，忽然它像一枝射进土中的利箭，在黑暗的天空楔入它所选定的地方，停止不动，它使尽全力地翘起尾巴，在无数闪烁的星星之间炫耀自己的白光。
• Layout input pole length ' s locus when the mechanism follows kadang movement in two ways . one is multinomial curve locus and the other is linearity intermixed by parabola curve locus . we study the displacement > velocity and acceleration curve consulting time under variety velocity characters , and get the best curve and the best velocity character , which will have a very important significance for kadang movement ' s input control of this mechanism
  对卡当运动输入杆件的伸长进行了轨迹规划，采用了多项式与混有抛物线的线性函数作为规划轨迹，研究了不同速度参数条件下的位移、速度、加速度的时间变化曲线，给出了最优曲线和最优速度，这对于机构卡当运动输入控制的实现和优化具有重要意义。