- 更多网络例句与拟长度相关的网络例句 [注:此内容来源于网络,仅供参考]
-
In addition, the curve of terahertz absorption coefficients can be fitted by a straight line with a slope of 1.92. From the results of scanning electron microscope, the ranges of inner diameter and outer diameters of the sample were from 5 to 15 nm and from 15 to 25 nm, respectively, and its length was in the order of micrometer.
检测结果显示,在0.2~2.0 THz内,样品折射率随着频率的增加而减小,吸收系数却随着频率的增加而增加,并可以拟合斜率为1.92的直线;样品的内径为5~15 nm、外径为15~25 nm,且长度达到了微米级,样品含C量大约为94%,其他为O和Cl杂质元素。
-
In section 4,we research the solvable groups of finite rank,and provethat the union set of all quasi-cyclic subgroups of G is a characteristic subgroup andthe Hirsch number hdoes not exceed n if G is a solvable group of rank n.Inparticular,for an arbitrary solvable torsion-free group G of rank n,we give theupper bound fof the derived length of G.
在第4节里,我们研究了有限秩的可解群,证明了这类群的所有拟循环子群构成它的一个特征子群,且对秩n的可解群G来说,其Hirsch数h≤n,另外,我们给出了秩n的无挠可解群的导出长度的一个上界。
-
Based on the examples analyzed,this paper mainly discusses the impacts of the polynomial degree,fit time span and interval of the fitting points when using chebyshev polynomial to fit the satellite orbit,the situation using more orbital elements and the area and choosing of the orbital elements are also discussed at last.
以实例分析为基础,主要讨论了利用切比雪夫多项式拟合GPS卫星轨道时多项式阶数、时段长度、拟合点间隔等因素的设置问题;并对使用多组轨道参数进行轨道拟合的情况进行了分析;最后讨论了轨道参数的使用范围和选择问题;得出了有用的结论。
-
It introduces normal families, including equicontinuity, Arzela's theorem, Montel's and Marty's theorems, Zalcman's lemma; univalent functions, including Koebe's and de Branges' theorems; quasiconformal mappings, including conformal length, extremal length, geometric, analytic and metric definitions, quasiconformal extension, distortion theorem, quasicircle; iteration of rational functions, including fixed points, the Fatou and Julia sets, periodic points, Siegel disks, the Hausdorff measure and dimension, etc.
具体为:正规族,包括等度连续性、Arzela定理、Montel和Marty正规定则、Zalcman引理;单叶函数,包括Koebe定理和de Branges定理;拟共形映照,包括共形模、极值长度、几何、分析和距离定义、拟共形延拓、偏差定理,拟圆周等;有理函数的迭代,包括不动点、Fatou集和Julia集、周期点、Siegel盘、Hausdorff测度和维数,等等。在教学内容上充分体现综合性、前沿性。
-
In this paper, the author estimated the module of quasiconformal mapping in curved fan, by the expression of local maximal dilatation function of quasiconformal mapping, Riemann′ s existence theorem and extremal length method, the author obtained a result of moduler deviation on curved fan.
本文对曲边扇形内的拟共形映照的模进行估计。借助拟共形映照的局部最大伸张函数来表达,利用黎曼存在定理和极值长度方法,得到关于曲边扇形的一个模偏差定理。
-
Meanwhile, on the basis of simulation model, the paper introduces the concepts of the combination of ship types, combination of berths, hectometer coastline throughput capability and coastline utilization ratio. By using curve fitting, the function between Tw/Tb and hectometer throughput capacity is achieved. Further more, the analysis of the optimal and suboptimal ship types combination and berths combination correspond to the fixed coastline and the optimal coastline length to the fixed ship types combination and berths combination is obtained.
同时,基于仿真模型,本文引入了船型组、泊位组、百米岸线通过能力及岸线利用率四个新的规划指标,拟合分析了到港船舶的待泊时间与靠泊时间比值Tw/Tb与百米岸线通过能力的函数关系,并进一步分析了在固定岸线长度下与其相适应的最优、次优的船型组合及泊位组合,确定船型组合、泊位组合情况下的最优岸线长度。
-
By using curve fitting, the function between Tw/Tb and hectometer throughput capacity is achieved. Further more, the analysis of the optimal and suboptimal ship types combination and berths combination correspond to the fixed coastline and the optimal coastline length to the fixed ship types combination and berths combination is obtained.
同时,基于仿真模型,本文引入了船型组、泊位组、百米岸线通过能力及岸线利用率四个新的规划指标,拟合分析了到港船舶的待泊时间与靠泊时间比值Tw/Tb与百米岸线通过能力的函数关系,并进一步分析了在固定岸线长度下与其相适应的最优、次优的船型组合及泊位组合,确定船型组合、泊位组合情况下的最优岸线长度。
-
Namely, the first, the beginning, end and length of growing season of every type of vegetation is estimated with threshold method and moving average method, and the beginning end and length of growing season of vegetation from 1982 to 1999 is fitted linearly, finally, linear trend of the beginning end and length of growing season of vegetation is analyzed. The second, phenological phase in different years and zones is estimated based on greatest changes of slope method and EOF analysis method, and the result monitored by the two methods is compared, as a result, trend of growing season change from 1982 to 1999 in different latitude zones is better acquired. The third, phenological phase of vegetation in different spatial location from 1982 to 1999 is fitted based on curve. Then, spatial difference rules of growing season of every year and average of multi-year is discussed in article. In the end, lag correlation and linear regress are used to study relation between phenological phase of different types of vegetation, different latitude zones, different spatial places and climate changes.
利用阈值法和滑动平均法逐年估测了每种植被类型的生长季的开始、结束日期及长度;对18年中植被生长季的开始、结束时间和长度进行一次线性拟合,分析了植被生长季的开始、结束日期和长度的线性变化趋势;基于最大变化斜率法和EOF分析法估计了不同年份、不同区域内植被生长季的开始、结束时间及其长度,并对这两种方法的监测结果作了比较,从而得到了较好的不同纬度区域1982~1999年植被生长季的变化趋势;基于曲线拟合了1982~1999年的不同空间位置的植被物候期,然后讨论了每年和多年平均的植被生长季的空间分异规律;最后利用时滞相关分析和线性回归研究了不同类型植被的物候期与气候变化的相互关系,不同纬度带的植被物候期与气候变化的相互关系,植被物候期与气候变化空间相互关系。
-
Theequivalence percolation resistance law is accurate enough to be used in productivitycalculation of horizontal well pattern.(3) Productivity of mixed well pattern of horizontalwell or multilateral horizontal well and vertical well is constructed and formulae are simpleenough to be used in the oilfield. The patterns include 5-spot pattern,7-spot pattern and9-spot pattern.(4) Productivity formula of united rectangular well pattern of horizontaland vertical wells is constructed. By this formula, the calculation results show that fora horizontal well length, there is a shape factor at which the productivity of the patternis biggest. So optimum method of the well pattern is proposed.(5) A new concept ofdimensionless length of horizontal well is advanced and the relationship of optimum shapefactor of the rectangular well pattern against dimensionless length of horizontal well ispresented. The influences of length of the horizontal well, area of the well pattern unitand the thickness of reservior are concerned.
利用该公式计算表明:当水平井长度一定时,存在一个最优井网形状,使得水平井的产能最大,在此基础上提出了水平井井网的优化方法;(5)提出了水平井无因次长度的概念,给出了联合井网最优井网形状因子与水平井无因次长度的关系式,并对水平井长度、油层厚度及井网面积对产能的影响进行了分析;(6)推导出了一无限水平井井排在XY 平面内势的解析解,为不同水平井整体开发井网或水平井和直井井网整体开发渗流理论的研究奠定了理论基础;(7)建立了交错式水平井与直井整体开发渗流理论,给出了拟三维条件下井网产能的精确解析解及该井网最优井网形状因子与水平井无因次长度的关系,并对产能的影响因素进行了分析;(8)建立了水平井与水平井正排列井网、交错排列井网条件下渗流理论及井网产能在拟三维条件下的精确解析解,给出了交错井网条件下最优井网形状因子与水平井无因次长度的关系,通过与正方形井网对比,说明优化井网可大幅度提高开采效果;(9)建立了分支水平井和直井面积井网水油两相非活塞驱替条件下渗流问题的解析解,给出了见水前后无因次产量与无因次时间的关系式以及见水时间等。
-
In order to contribute to analyse and compute easily setback moving devices on the projectile fuzes,and to make the fuze devisers be able to get the approximate acceleration curves with a few parameters such as tube length and muzzle velocity of the guns,the displacement-time curve and velocity-time curve of gun interior ballistic are fitted with the Logistic models,then the formula of projectile acceleration curves in bore are gotten by the derivation of the formula of fitting velocity-time curve.
为了便于炮弹引信后坐运动机构的分析和计算,能使引信工作者只根据身管长度和炮口速度等少量参数就能获得弹丸膛内加速度近似曲线,运用Logistic函数拟合火炮内弹道的位移-时间曲线和速度-时间曲线,再对拟合得到的速度-时间曲线求导便得到了弹丸膛内加速度近似曲线。
- 更多网络解释与拟长度相关的网络解释 [注:此内容来源于网络,仅供参考]
-
quasilinear autonomous system:拟线性自控系统
拟长度 quasilength | 拟线性自控系统 quasilinear autonomous system | 拟幂零算子 quasinilpotent operator
-
quasi-limited existential quantifier:拟受囿存在量词
quasi-length 拟长度 | quasi-limited existential quantifier 拟受囿存在量词 | quasi-limited univerasl quantifier 拟受囿全称量词
-
pencil:笔型
铁板..8 shad 9.spinner bait 10.buzz bait那个还是米诺(minnow),铅笔型(pencil)拟饵和minnow外型最大的区别就是minnow有压水板,可以借助压水板下潜,具体下潜深度由压水板长度和角度决定,在出厂前已设定潜深.
-
periwinkle:滨螺
为了避难与保护身体寄居在空螺壳(如蛾螺(whelk)或滨螺(periwinkle))或其他中空物体内的蟹类. 寄居蟹总科包括有寄居蟹科,拟寄居蟹科,石蟹科等,常见的如大寄居蟹(方腕寄居蟹),体形很大,大螯长度超过10厘米,两螯表面和边缘生有许多刺状突起,
-
quasigroup:拟群
拟保角映射 quasiconformal mapping | 拟群 quasigroup | 拟长度 quasilength
-
quasilength:拟长度
拟群 quasigroup | 拟长度 quasilength | 拟线性自控系统 quasilinear autonomous system
-
vernalization:春化作用
春化作用(vernalization)是某些高等植物具备成花能力所必需的,即通过适当长度和强度的冷处理诱导开花抑制蛋白基因沉默,从而使植物具备开花能力.近年来的研究已经表明春化过程中特定抑制蛋白表达沉默的原因部分是由于染色体上特定位点的组氨酸的共价修饰.本文主要介绍春化过程中拟南芥中的FLC基因表达被抑制的分子机理及相关