On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.
在地球上，人们认为，表明太阳黑子周期最可靠的迹象之一是树木的生长速度，就像树干横截面上可见的年轮一样。
After more than a decade's labor, which required examining 20,000 electron microscope cross sections of the worm's anatomy, Dr. White worked out exactly how the 302 neurons were interconnected.
经过十多年的努力，研究了2万个电子显微镜下蛔虫的解剖结构横截面，怀特博士精准计算出了302个神经元是怎样连接起来的。
After more than a decade's labor, which required examining 20, 000 electron microscope cross sections of the worm's anatomy, Dr. White worked out exactly how the 302 neurons were interconnected.
经过十多年的努力，研究了2万个电子显微镜下蛔虫的解剖结构横截面，怀特博士精准计算出了302个神经元是怎样连接起来的。
If those two branches in turn each split into two branches, the area of the cross sections of the four additional branches together will equal the area of the cross section of the trunk. And so on.
这条的规律可以简单描述为：如果一根树干分叉为两个树枝，那么两个树枝的横截面积之和等于树干的横截面积；如果树枝接着分别分叉为两根小树枝，那么这四个次生分枝的横截面积总和仍等于树干的横截面积……依此类推。
The problems of various transmission lines with different cross sections may be solved by a simple and unified method.
各种不同截面形状的传输线，原则上都能用一个简便而统一的方法进行处理。
These options control cross sections and their arrows!
这些选项控制横截面和它们的箭头！
Excited state absorption cross sections are obtained through Z-scan curve fitting.
通过曲线拟合，得出了它们的激发态吸收截面。
The values of these cross sections affect the path to synthesize the A > 12 elements.
这些辐射俘获截面的大小，直接影响到A>12以上元素合成的途径。
In Eq. (53) it is assumed that there is no restraint to the free warping of the cross sections.
在式(53)中，可假定对截面的自由翘曲没有阻碍。
Nowadays, many experimental measurements of tpa cross sections of organic molecules take place in solutions.
目前，有机分子的双光子吸收性质都是在溶剂中测量的。
The incident Angle dependences of the cross sections for single event upset and single event latchup are presented.
获得了单粒子翻转和单粒子闭锁截面与入射角度的依赖关系。
The cross sections in the region that includes control rod and part reflector are homogenized by the weight of fluxes.
按通量权重归并控制棒区（包括控制棒、空隙及石墨反射层的整个圆环）的均匀化截面。
The cross sections in the region that includes control rods and part reflector are homogenized by the weight of fluxes.
按通量权重归并控制棒区(包括控制棒、空隙及石墨反射层的整个圆环)的均匀化截面。
Based on multiresolution analysis, a method for computation of TE and TM modes in arbitrary cross sections is described.
本文根据多分辨分析理论，给出了计算具有任意横截面波导的TE模和TM模的一种方法。
By experiments, it analysed the influence of cross sections of profile fiber on the properties of moisture-transfer and dry-fast.
通过试验，分析了异形纤维的截面形状对织物导湿快干性能的影响。
The multiple group cross sections are indispensable when we want to obtain the neutron spectrum by multiple foil activation method.
在利用活化法进行中子能谱测量中，活化箔的多群截面是必须的输入参数之一。
The method of curves of cross sections is one of the important and popularly applied ways in generation of tool path in NC machining.
截面线法是数控加工中重要的也是应用较为广泛的一种刀具轨迹的生成方法。
It is shown that the rotational excitation cross sections are sensitive to the directionality of potential surface and scattering Angle.
研究表明：转动激发截面对势能表面的方向性和散射角都非常敏感。
From cross sections of stems-cuttings, a primordium of adventitious roots originates from the cross region of pith rays and vascular cambium.
从横切面上观察到，不定根原基起源于髓射线与维管形成层交叉的部位。
Choosing representative cross sections in each bank slope, the paper USES generalized wedge method to analyze and appraise the stability of them.
对各个库岸分段选取典型剖面，采用广义楔形体法对剖面的稳定性进行计算及评价。
The emission cross sections of the observed lines and the excitation cross sections of the corresponding states are obtained in the visible region.
在可见光范围给出了所观察到的各条谱线的发射截面及相应上能级的激发截面。
In this stage semifinished products with smaller cross sections are produced, such as slab, bloom or billet, which are suitable for further rolling.
这个阶段的产品是横断面较小的半成品，如板坯、大钢坯、小方坯等。这些半成品适合于进一步轧制。
We can obtain a lot of information about interactional potential between atoms or atoms and molecules by measuring rate coefficients and cross sections.
测得这种能量转移过程的速率系数和碰撞截面，可以获得原子之间以及原子与分子之间相互作用势的许多信息。
According to the comparison with experimental data, the calculated capture cross sections and the fragment distributions of the quasi-fission were reasonable.
计算得到的俘获截面、准裂变截面和碎片分布及其发生的时间分布等结果与实验数据符合较好。
The porous structure of wood samples on their cross sections was observed using the scanning electron microscope (SEM) images and analyzed via the fractal theory.
通过扫描电镜图片对木材试样横纹剖面的多孔结构特征进行了观察，并利用分形理论对其进行了分析。
The fission barrier parameters for actinide nuclei were obtained by analysis and calculations of fission cross-sections and complete neutron reaction cross sections.
通过分析和计算锕系核裂变截面和全套中子反应截面获取了一组锕系核的裂变位垒参数。
The porous structure of wood samples on their cross sections was analyzed using scanning electron microscope images, and their box-counting dimensions were calculated.
通过分析木材试样的扫描电镜照片，研究了木材横纹剖面的多孔结构特征，采用盒维数法计算了其分形维数。
A general equation is established to calculate the deformation of continuous beams on many supports taking into consideration the stepped cross sections and unequal spans.
考虑阶形变化截面及不等跨度的情况，建立了求解多跨连续梁变形的通用方程。
A general equation is established to calculate the deformation of continuous beams on many supports taking into consideration the stepped cross sections and unequal spans.
考虑阶形变化截面及不等跨度的情况，建立了求解多跨连续梁变形的通用方程。
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